E-S Stealth Electric Bike Owners

Show off your E-bike creation here.

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Sat Jun 30, 2012 5:46 pm

QuaziModo wrote:
QuaziModo wrote:Woohoo! Fighter is on its way!


Just back from NZ and unpacked the Fighter. Threw it together but there was no user manual etc. is that normal? I googled it and found one on a strange website but it wasn't of great detail, is there a real manual somewhere which is up to date?


I think you got that off Jim Kirk's web site. Jim Goes by the name of stealth_rider on this forum and is very active on the Googles group site. Check out his posts over on Google Groups. Lots of good info.
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby robohead » Sat Jun 30, 2012 9:08 pm

Image

2012 new bomber owner here(#145). Upgraded from an A2B Metro.
I think my low voltage cutout is set too high @ 70V as I ran out of juice on my first day and did not go all that far. What do most of you set it to?
robohead
10 mW
10 mW
 
Posts: 25
Joined: Sat Jun 30, 2012 8:58 pm
Location: Sunnyvale, California

Re: E-S Stealth Electric Bike Owners

Postby Stealth_Bombering » Sun Jul 01, 2012 1:24 am

robohead wrote:Image

2012 new bomber owner here(#145). Upgraded from an A2B Metro.
I think my low voltage cutout is set too high @ 70V as I ran out of juice on my first day and did not go all that far. What do most of you set it to?



Until one of the other guys with more knowledge responds you may want to look at the below link. There is a post on May 9 2011 at 1:54 am that says the recommendation at that time was 72v. Maybe all you need is a full charge.
http://groups.google.com/group/stealth-electric-bikes/browse_thread/thread/5114ca9ddfd66a7c/cb1f3597c9a24b32?lnk=gst&q=lvc#cb1f3597c9a24b32
User avatar
Stealth_Bombering
10 mW
10 mW
 
Posts: 21
Joined: Wed Apr 25, 2012 10:38 pm
Location: Irvine, ca

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Sun Jul 01, 2012 2:14 am

robohead,

Congratulation on the new bike and welcome to the forum.

70V to 72V is correct for the CA. This is basically 2.9V to 3V per cell.

As Stealth_Bombering suggested, make sure the bike is fully charged then test it again. Make sure you zero the CA beforehand then at the end of the ride, take down the end voltage, ahrs used, Whrs and Whrs/km (or mile). Get back to us with this so we check if you have an issue that needs resolving. You dont need to use flattern the pack (its always better not to especially when brand new). We can still get an idea if there is a problem or not.
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby Paul_G » Sun Jul 01, 2012 5:09 am

robohead wrote:Image

2012 new bomber owner here(#145). Upgraded from an A2B Metro.
I think my low voltage cutout is set too high @ 70V as I ran out of juice on my first day and did not go all that far. What do most of you set it to?


What were the KWH's used when it cut out? You should have seen 1470 area with a new battery.

You can cut out from two places, the CA as well as the BMS inside the battery.

I have my CA's low volt cut out set to 50 volts and let the BMS deal with it as the CA will only show you what the BMS allows. The BMS cuts the amps draw < 67.5 volts.
Paul_G
1 kW
1 kW
 
Posts: 313
Joined: Mon Feb 28, 2011 8:42 am
Location: Bronx, NY

Re: E-S Stealth Electric Bike Owners

Postby cruzxia » Sun Jul 01, 2012 8:13 am

I have a 2012 Bomber the CA lo battery voltage was set to 69v at the factory. This will give full power when the battery gets low. I reset my level to 70v, this helps when the pack gets low as it limits the power/current draw from the battery, reducing the risk of the BMS shutting down the battery early. At 70v the output drops to around 3900 when the pack has delivered over 10Ah.

I will probably go back to 69v once I have 20 cycles on the cells.

Cruzxia
User avatar
cruzxia
10 W
10 W
 
Posts: 93
Joined: Fri May 18, 2012 5:27 am
Location: QLD, Australia

Re: E-S Stealth Electric Bike Owners

Postby cruzxia » Sun Jul 01, 2012 8:47 am

Rix

Be careful with the axle nuts, don't exceed 45 ft lb. Although the axle is 14mm, with the flats removed the tread area is the same as an 8mm bolt. The NY lock nuts are soft, and should only be used a few times.

I had a problem with the axle slipping backwards on the brake side when braking over bumps. I filed some grooves in the axle adjuster plate (the side that faces the swing arm) this gave it enough friction to prevent it slipping.

I replaced the NY lock nuts with flange nuts that I made up of carbon steel and hardened. This increases the thread area from 7mm on the NY lock nut to 17 mm on the flange nuts.
I will post some photos of the nuts tomorrow.


Cruzxia
User avatar
cruzxia
10 W
10 W
 
Posts: 93
Joined: Fri May 18, 2012 5:27 am
Location: QLD, Australia

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Sun Jul 01, 2012 5:06 pm

cruzxia wrote:I have a 2012 Bomber the CA lo battery voltage was set to 69v at the factory. This will give full power when the battery gets low. I reset my level to 70v, this helps when the pack gets low as it limits the power/current draw from the battery, reducing the risk of the BMS shutting down the battery early. At 70v the output drops to around 3900 when the pack has delivered over 10Ah.

I will probably go back to 69v once I have 20 cycles on the cells.

Cruzxia


Totally agree with you on this one Cruzxia. You want the CA to act as a buffer. With the pack close to the end of its charge a handful of throttle is likely to sag the voltage to the BMS cutoff point. I think what Paul is doing as an experienced Bomber rider is nursing the bike with careful throttle management as it gets closer to its end voltage. You will probably get a few more miles out of the bike by doing this. I prefer to let the CA take care of this automatically and I would recommend that new owners do the same.

The more conservative you are with the CA setting, the better life you will get out of the pack. However, the BMS cut out point of 2.8V per cell is still quite reasonable for overall longevity.

Look forward to seeing the lock nut solution you have in mind. I must admit, I havent had any issues with the standard nuts loosening off or stripping due to excessive tightening. That being said, I am alway open to improvements :)
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby cruzxia » Sun Jul 01, 2012 5:56 pm

Hi All
Attached is a photo of the flange nuts, there are no washers needed and they do not loosen, I torque them to 45 ft lb.
The nuts are 17mm wide and threaded all the way through, so there is a large thread surface area.

Nut1.jpg

Nut2.jpg


Cruzxia
User avatar
cruzxia
10 W
10 W
 
Posts: 93
Joined: Fri May 18, 2012 5:27 am
Location: QLD, Australia

Re: E-S Stealth Electric Bike Owners

Postby Cowardlyduck » Sun Jul 01, 2012 6:13 pm

Kepler wrote:The more conservative you are with the CA setting, the better life you will get out of the pack. However, the BMS cut out point of 2.8V per cell is still quite reasonable for overall longevity.

Look forward to seeing the lock nut solution you have in mind. I must admit, I havent had any issues with the standard nuts loosening off or stripping due to excessive tightening. That being said, I am alway open to improvements :)


I saw my Fighter voltage drop to 43V the other day. So that's 2.6825V per cell. Is that normal? I do generally use the CA as a LVC and then lower it when I've got some distance to get home still. I was lowering it volt by volt to get home till about 43V before I finally got home. WH used was 976. AH used was 19.5.

cruzxia wrote:I had a problem with the axle slipping backwards on the brake side when braking over bumps. I filed some grooves in the axle adjuster plate (the side that faces the swing arm) this gave it enough friction to prevent it slipping.
Cruzxia


I've had a fair bit of trouble with my axle nuts as well. I noticed Stealth have now switched from the standard nuts to nylocks which seem to help. The main issue I had was exactly the same as you Cruxia. The whole wheel and torque-plates together were slipping backwards under heavy braking and Regen. It seems to have lessened since I tighten the hell out of the nuts now though. I most probably (no definitely) exceeding the 45 ft lb torque on them though. Don't have a torque wrench. I basically put all my weight on the spanner, after John recommended that I REALLY tighten them...haven't had any issue with doing that yet though...and it's a small spanner. :lol:

Cheers
User avatar
Cowardlyduck
1 kW
1 kW
 
Posts: 348
Joined: Sun Jun 26, 2011 8:41 pm
Location: Canberra, ACT, Australia

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Sun Jul 01, 2012 6:46 pm

Cowardlyduck wrote:
I saw my Fighter voltage drop to 43V the other day. So that's 2.6825V per cell. Is that normal? I do generally use the CA as a LVC and then lower it when I've got some distance to get home still. I was lowering it volt by volt to get home till about 43V before I finally got home. WH used was 976. AH used was 19.5.

Cheers


I am not sure if the packs from the Bomber and Fighter come from the same place and as such they may well have different BMS cutout thresholds. 2.6V per cell is not an unusual BMS setting for a LiFe PO4 pack. Typically the absolute max discharge point is 2V but it does depend on the cell manufacturer. Sounds like you got close to the maximum discharge of that pack.

How many more km did you squeeze out of the pack by lowering your CA threshold?
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby remf » Sun Jul 01, 2012 6:49 pm

cruzxia wrote:Hi All
Attached is a photo of the flange nuts, there are no washers needed and they do not loosen, I torque them to 45 ft lb.
The nuts are 17mm wide and threaded all the way through, so there is a large thread surface area.

Nut1.jpg

Nut2.jpg


Cruzxia


They look very solid cruzxia! The new stock nylocs are good so far but yours are the best I've seen. Where did you find them?
User avatar
remf
100 W
100 W
 
Posts: 272
Joined: Fri Apr 29, 2011 7:57 pm
Location: NSW Australia

Re: E-S Stealth Electric Bike Owners

Postby Cowardlyduck » Sun Jul 01, 2012 7:00 pm

Kepler wrote:How many more km did you squeeze out of the pack by lowering your CA threshold?


About 10km.

I should also note that I was also limiting amps draw to about 3-5 amps once I hit the first LVC (47V) of the CA, so about 150-200W, which was enough with pedaling to maintain 25kmh+.
I hit the first CA threshold at about 70km, then by lowering it bit by bit and keeping amps draw low, I managed to get home with a total distance traveled of just over 80km. So an extra 10km isn't too bad. :).
This was on flat cycle paths mind you. I don't think it would be possible get even half that on mountainous or off-road terrain.

I could really see the voltage cliff talked about in action as I kept drawing power from the pack. Towards the end, I had to lower the CA LVC every 1km or so.
Cheers
User avatar
Cowardlyduck
1 kW
1 kW
 
Posts: 348
Joined: Sun Jun 26, 2011 8:41 pm
Location: Canberra, ACT, Australia

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Mon Jul 02, 2012 3:24 am

With my Bomber having have had a bit of a birthday recently, I thought I would take the opportunity to put an acceleration run up on YouTube to demonstrate the sort of acceleration 10kW plus gives you. My apologies for the video quality. You need to run it in 480dpi to read the screen. If you look carefully you can see the bike is drawing over 11kW for much of the run.

Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby cruzxia » Mon Jul 02, 2012 4:26 am

Wow Kepler your Bomber is quick, very nice.

As for the flange nuts, I couldn't find any in my local town, so I made them from carbon steel on my mill and lathe, and then hardened them. I went down a spanner size to keep them a bit lighter.

Cruzxia
User avatar
cruzxia
10 W
10 W
 
Posts: 93
Joined: Fri May 18, 2012 5:27 am
Location: QLD, Australia

Re: E-S Stealth Electric Bike Owners

Postby cruzxia » Mon Jul 02, 2012 4:27 am

I forgot to mention the other issue I had. The nylon plastic sleeve that protects the wires where they enter the motor, started to rotate. It has a notch in it where the wires come out, the motor wires were the only thing preventing it from rotating fully.
Lucky I noticed it, as the sharp edge of the nylon had cut through the heat shrink and was just starting to cut the motor wires insulation.

I re-heat shrunk the wires where they enter the motor, then to prevent any rotation, I drilled a 1.5 mm hole through the nylon ring into the axle about 2mm. I then screwed in a small self tapping screw, which prevents any rotation of the nylon sleeve. You can see the screw head in the photo I posted earlier (on the brake side)

I noticed this issue because the wheel started to make a squeaking sound. When I moved the wheel back and forward the sleeve rotated 5-8mm with each direction change. The nylon ring is only held in place by glue, my glue let go.

Cruzxia
User avatar
cruzxia
10 W
10 W
 
Posts: 93
Joined: Fri May 18, 2012 5:27 am
Location: QLD, Australia

Re: E-S Stealth Electric Bike Owners

Postby Rix » Mon Jul 02, 2012 10:32 am

Cruxzia,
cruzxia wrote:Hi All
Attached is a photo of the flange nuts, there are no washers needed and they do not loosen, I torque them to 45 ft lb.
The nuts are 17mm wide and threaded all the way through, so there is a large thread surface area.

Nut1.jpg

Nut2.jpg


Cruzxia


Thats a great idea with the flange nuts and grooving the axel adjuster plate face. I touqued my axel nuts to 34 Ibs which is about 46nm. It's holding but I haven't used the breaks hard through the woops yet. I will be buying some axel flange nuts and grooving the adjuster plates on both sides. Looking at your pics, there is a huge gain in the flange nut thread surface area contact. With this surface contact gain, 50-55 nm shouldn't be any problem at all with concerns to stripping the threads from over tightening. The next time you have your rear wheel off, could you snap a pic of your drilled out nylon ring mod?

Robohead,

Like you I have a new bomber, #143. Yesterday I had my first "hard ride" on it. I spent the first 4 rides taking it real easy to break in the pack. I noticed when i started going north of 950 wh (about 12 AH), blipping the throttle caused my voltage to drop down to about 71.5 volts. Like your bomber, my LVC is also set at 70 volts. When everthing was said and done, I went 29 miles (48 KM) and used about 1030 watt hours. This was a mix of dirt trails and fast street riding with a few short hills between 6-9%. If I am only road riding and keeping my velocity between 20-25 MPH, I think I could get 50 miles out of a charge.

Kepler, thanks for posting your bomber manual. I noticed on the Vboxx portion of your manual said refill with gear oil. Mine says refill with grease. I believe there was some lost in translation verbiage on my manual. Your excelleration test was awesome. Listening to your motor, it even sounded different. I could hear the difference over the wind. Is there a chance you could make have someone film you from a dead stop taking off? I am betting you would be out of sight very quickly. BTW, do you know if the rear shocks on the older bomber chassis are sprung different than the newer ones? After I changed the preload of my spring, (adjusted all of the way down with only 3 rows of threads showing, I lost almost all of my static sag. Maybe had an inch. So backing off the preload to about the middle on the shock body has given me the 2.5-2.75 of rider sag which I wanted. To my surprise, the bike doesn't seem to handle any better than it did with the 3.5" rider static sag I had before. Just a little stiffer when seated. Also, my bike doesn't seem to turn any quicker which it should now because the rider static front fork head angle is now steeper. The only thing I am willing to bet on is that I am less likely to bottom out now from a hard landing than before. On the bottom right leg of the RST One fork, there is a blue nob. I think I counted 8 or 9 total adjustments. When the adjustment is turned clockwise all the way out, this allows the fork to extend after compression faster than it does when turned all of the way in clockwise...normally. And then you can fine tune rebound to preference. With my fork rebound set from 1 out to 8 out, the return rate is the same. I cant tell a difference at all. Is yours the same way? If it isn't I may, have a bad cartridge valve. If it is, this is an RST handeling trait then. Sorry to keep bugging you with the questions. One other thing, riding the bomber everynight after working out with kettlebells I has caused me to dropped 8 pounds (3 Kilos). Riding the bomber on the flat under my own power is like doing hill sprints. If I keep this up, I wont be anywhere near 260# 118kg for long. Kind of funny how something this fun is also good for the body. Tell John to advertise Stealth Bikes in the US as long term cure for our ever increasing obeisty problem.

Rix
User avatar
Rix
10 kW
10 kW
 
Posts: 693
Joined: Thu Mar 29, 2012 11:26 am
Location: Fallon NV USA

Re: E-S Stealth Electric Bike Owners

Postby QMS » Mon Jul 02, 2012 12:14 pm

Hey guys. Congrats Rix and Robohead on your Bombers and welcome Robohead to the forum. Re the axle nuts Tench mentioned a while back that philidas nuts would fix this problem! I have used them before on other stuff and they are great and easy to find. They have great gripping force and they don't wear out any where near as fast as nylocks. As for greasing the gear box John from Stealth recommends a"lithium" grease for this! The Vboxx manual is a bit vague in this area. Just bear in mind that the box wasn't originally designed for the Stealth and thus is not under any where near as much duress as it would be fitted to a NON powered bike, and the grease really doesn't have to be changed until about 5000 KM's, unless it has been badly beaten! Oh and Kepler happy birthday(ha ha), REALLY need to see your Bomber go from a second person perspective. The torque from that thing must be AWESOME.11KW's that's PHAT AS :mrgreen:
ImageImageImage
User avatar
QMS
100 W
100 W
 
Posts: 110
Joined: Sat Mar 17, 2012 6:41 pm
Location: Adelaide South Australia

Re: E-S Stealth Electric Bike Owners

Postby robohead » Mon Jul 02, 2012 3:19 pm

Thanks QMS, and everybody else. This is actually not my first time here, the forums are broke and wont let me login with my old account or reset it's password. memberlist.php?mode=viewprofile&u=15903
Living on the peninsula in the Silicon Valley really limits my ability to fully take advantage of this bike. Guess it's time to go out and buy a pickup truck so I can lug this beast to places worth riding.

Rix: I'm still getting used to the CA, so I did not jot down all the mental details. I think it died out around 1030. I also think the CA is set to draw 65A
robohead
10 mW
10 mW
 
Posts: 25
Joined: Sat Jun 30, 2012 8:58 pm
Location: Sunnyvale, California

Re: E-S Stealth Electric Bike Owners

Postby Paul_G » Mon Jul 02, 2012 4:20 pm

robohead wrote:Thanks QMS, and everybody else. This is actually not my first time here, the forums are broke and wont let me login with my old account or reset it's password. memberlist.php?mode=viewprofile&u=15903
Living on the peninsula in the Silicon Valley really limits my ability to fully take advantage of this bike. Guess it's time to go out and buy a pickup truck so I can lug this beast to places worth riding.

Rix: I'm still getting used to the CA, so I did not jot down all the mental details. I think it died out around 1030. I also think the CA is set to draw 65A


The battery is 1500 WH's but in real life I see 1470...close enough.

Its possible the RShunt value is set wrong in the CA and the battery is OK or the battery is defective but I will go with a bad RShunt setting as you seemed to get a good range.

Rshunt value is under advanced options in the CA. You use a DC Amoprobe and clamp it around one power wire, put the bike on a stand and run the motor WOT and see if the probe matches the CA. Adjust the CA till they are the same....BTW .001 will make a diff.
Paul_G
1 kW
1 kW
 
Posts: 313
Joined: Mon Feb 28, 2011 8:42 am
Location: Bronx, NY

Re: E-S Stealth Electric Bike Owners

Postby robohead » Mon Jul 02, 2012 6:37 pm

Paul_G wrote:The battery is 1500 WH's but in real life I see 1470...close enough.


This ebike was supposed to ship Apr 9th. After waiting for a long time, we started to put some pressure on the US sales rep Darrin. He claimed that Stealth delayed the shipment of all ebikes because they wanted to upgrade the batteries at the factory and were waiting on a shipment. I attempted to inquire what upgrades/downgrades etc were being made to the packs, but never got any technical questions answered other than confirming they were definitely going to still be LiFePo4. So something with Rix's and my packs should differ (one can only hope for more capacity). Then again, Darrin might of been full of it.
robohead
10 mW
10 mW
 
Posts: 25
Joined: Sat Jun 30, 2012 8:58 pm
Location: Sunnyvale, California

Re: E-S Stealth Electric Bike Owners

Postby Paul_G » Tue Jul 03, 2012 5:39 am

robohead wrote:
Paul_G wrote:The battery is 1500 WH's but in real life I see 1470...close enough.


This ebike was supposed to ship Apr 9th. After waiting for a long time, we started to put some pressure on the US sales rep Darrin. He claimed that Stealth delayed the shipment of all ebikes because they wanted to upgrade the batteries at the factory and were waiting on a shipment. I attempted to inquire what upgrades/downgrades etc were being made to the packs, but never got any technical questions answered other than confirming they were definitely going to still be LiFePo4. So something with Rix's and my packs should differ (one can only hope for more capacity). Then again, Darrin might of been full of it.


When I got my Bomber #40 I had to set the RShunt calibration in the CA as it was dropping dead at 1050-1100 WH's. John sent a 2nd battery and it was the same so I bought a DC amp probe and after setting I got 1475 on both battery's. John gave me a deal on the 2nd battery so I kept it.

I'll bet you need to do the same....set the RSunt value and the battery is fine. Or after setting you still get 1050 WH's have john send a new battery.
Paul_G
1 kW
1 kW
 
Posts: 313
Joined: Mon Feb 28, 2011 8:42 am
Location: Bronx, NY

Re: E-S Stealth Electric Bike Owners

Postby Rix » Tue Jul 03, 2012 9:45 am

[quote="cruzxia"]I forgot to mention the other issue I had. The nylon plastic sleeve that protects the wires where they enter the motor, started to rotate. It has a notch in it where the wires come out, the motor wires were the only thing preventing it from rotating fully.
Lucky I noticed it, as the sharp edge of the nylon had cut through the heat shrink and was just starting to cut the motor wires insulation.

I re-heat shrunk the wires where they enter the motor, then to prevent any rotation, I drilled a 1.5 mm hole through the nylon ring into the axle about 2mm. I then screwed in a small self tapping screw, which prevents any rotation of the nylon sleeve. You can see the screw head in the photo I posted earlier (on the brake side)

I noticed this issue because the wheel started to make a squeaking sound. When I moved the wheel back and forward the sleeve rotated 5-8mm with each direction change. The nylon ring is only held in place by glue, my glue let go.

Cruzxia[/quot

Disregard my request, I enlarged your picture and saw the "set screw" you put into the sleeve to keep it from spinning. Way to improve on OEM design. :D
User avatar
Rix
10 kW
10 kW
 
Posts: 693
Joined: Thu Mar 29, 2012 11:26 am
Location: Fallon NV USA

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Tue Jul 03, 2012 4:56 pm

For anyone interested I submitted an article to http://www.electricbike.com on the modifications done to both my Bomber and Fighter. http://www.electricbike.com/stealth-hot-rod/
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

Re: E-S Stealth Electric Bike Owners

Postby Kepler » Tue Jul 03, 2012 5:00 pm

Rix wrote:
cruzxia wrote:I forgot to mention the other issue I had. The nylon plastic sleeve that protects the wires where they enter the motor, started to rotate. It has a notch in it where the wires come out, the motor wires were the only thing preventing it from rotating fully.
Lucky I noticed it, as the sharp edge of the nylon had cut through the heat shrink and was just starting to cut the motor wires insulation.

I re-heat shrunk the wires where they enter the motor, then to prevent any rotation, I drilled a 1.5 mm hole through the nylon ring into the axle about 2mm. I then screwed in a small self tapping screw, which prevents any rotation of the nylon sleeve. You can see the screw head in the photo I posted earlier (on the brake side)

I noticed this issue because the wheel started to make a squeaking sound. When I moved the wheel back and forward the sleeve rotated 5-8mm with each direction change. The nylon ring is only held in place by glue, my glue let go.

Cruzxia[/quot

Disregard my request, I enlarged your picture and saw the "set screw" you put into the sleeve to keep it from spinning. Way to improve on OEM design. :D


Good one Rix. That sleeve is normally held in place just with silicon. Not a great design by Crystalite :roll: I think Stealth should certainly look at improving this.
Current Rides

Carbon Super Commuter: ON ROAD http://endless-sphere.com/forums/viewtopic.php?f=6&t=47139
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 2.5 kW Stealth Fighter: OFF ROAD http://www.stealthelectricbikes.com/
User avatar
Kepler
1 MW
1 MW
 
Posts: 1733
Joined: Sun Nov 08, 2009 9:22 pm
Location: Eastern suburbs Melbourne Australia

PreviousNext

Return to E-Bike Photos & Video

Who is online

Users browsing this forum: No registered users and 9 guests