Stealth FUTR owners builds and pics

Show off your E-bike creation here.
JtHaas   10 W

10 W
Posts: 70
Joined: Oct 17 2016 6:10pm
Location: San Fernando Valley

Re: Stealth FUTR owners builds and pics

Post by JtHaas » Jan 21 2018 4:49am

I found my problem a little while ago...
Could someone please point me to the proper hall sensors for a BMC V4 pleeease :) whether or not any generic sensor will work or not is beyond me.
I just know I'll need a new one.

I guess it's time for me to go dig around a bmc thread. On brighter news though I now have front and rear brakes. I'm just waiting on a rear disc brake mount so I can fit the 203mm disc. I'm tempted to ride this beast gutless down my local trail and see how it does but I think I'll hold off for now.

User avatar
Rix   100 GW

100 GW
Posts: 6424
Joined: Mar 29 2012 11:26am
Location: Fallon NV USA

Re: Stealth FUTR owners builds and pics

Post by Rix » Jan 21 2018 8:29am

JtHaas wrote:
Jan 21 2018 4:49am
I found my problem a little while ago...
Could someone please point me to the proper hall sensors for a BMC V4 pleeease :) whether or not any generic sensor will work or not is beyond me.
I just know I'll need a new one.

I guess it's time for me to go dig around a bmc thread. On brighter news though I now have front and rear brakes. I'm just waiting on a rear disc brake mount so I can fit the 203mm disc. I'm tempted to ride this beast gutless down my local trail and see how it does but I think I'll hold off for now.
Build is coming along.

Swe   100 W

100 W
Posts: 165
Joined: Aug 11 2014 5:39am
Location: Stockholm, Sweden

Re: Stealth FUTR owners builds and pics

Post by Swe » Jan 21 2018 2:14pm

My rear suspension has some colour removed (think it calls abraded in english) on left side. I have had a little sound from suspension and after putted a little grease between the piston and coil spring the sound is gone. But this should not happened at all should it? Do I have a bad angle between the frames? I have just mounted everything in the middle, with same spacers on both sides. Should I adjust something? See picture...
4CB49CA6-8927-4375-B51E-3C8B357AAC3F.png

JtHaas   10 W

10 W
Posts: 70
Joined: Oct 17 2016 6:10pm
Location: San Fernando Valley

Re: Stealth FUTR owners builds and pics

Post by JtHaas » Jan 21 2018 2:53pm

Swe wrote:
Jan 21 2018 2:14pm
My rear suspension has some colour removed (think it calls abraded in english) on left side. I have had a little sound from suspension and after putted a little grease between the piston and coil spring the sound is gone. But this should not happened at all should it? Do I have a bad angle between the frames? I have just mounted everything in the middle, with same spacers on both sides. Should I adjust something? See picture...

4CB49CA6-8927-4375-B51E-3C8B357AAC3F.png
Hey Swe,
Coil Shocks don't usually develop squeaking sounds like air shocks tend to but you can usually get a little clue as to what's going on inside the shock from the sound. Whether it's displaced fluid or it's just coming from the mounting points of the shock.
If it feels fine I wouldn't worry about sounds unless they are excessive. Have someone at a local bike shop tune your rear shock for you. They'll either get it nice and dialed for you or tell you it might need some new O-ring or more fluid. Luckily I hear DNM has good some good customer service so if you feel it's a real problem try contacting them if you're not looking to spend money at the bike shop.

Swe   100 W

100 W
Posts: 165
Joined: Aug 11 2014 5:39am
Location: Stockholm, Sweden

Re: Stealth FUTR owners builds and pics

Post by Swe » Jan 22 2018 2:10am

I would say the sound was from the coil spring grinding against the piston, since it is silent when I putted a little grease where the piston colour was removed. So no problem with oil but what do I know...?

Am I right I should adjust the angle a couple of mm? Even though you would think it should just be in center everything.

User avatar
efMX Trials Electric Freeride   100 kW

100 kW
Posts: 1122
Joined: Feb 15 2013 4:43pm

Re: Stealth FUTR owners builds and pics

Post by efMX Trials Electric Freeride » Jan 22 2018 11:08am

make sure you have enough preload on the spring. if the spring is not preloaded it could rattle or contact the shock body.. how much suspension sag are you running?
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

Swe   100 W

100 W
Posts: 165
Joined: Aug 11 2014 5:39am
Location: Stockholm, Sweden

Re: Stealth FUTR owners builds and pics

Post by Swe » Jan 24 2018 1:35pm

Thanks then that is probably the problem! I have not tested yet, but I see the spring is all the way ”out” so there is no pressure on (no pre-load?). I have earlier only tested turning the little blue one for the piston. Found the manual now and there is a smaller red one also that does sonething...
Yes I am not used to suspension bikes :)

User avatar
efMX Trials Electric Freeride   100 kW

100 kW
Posts: 1122
Joined: Feb 15 2013 4:43pm

Re: Stealth FUTR owners builds and pics

Post by efMX Trials Electric Freeride » Jan 24 2018 1:57pm

yes, you would want to have some static compression of the spring to keep it in place on the shock body.. this is done by rotating the spring and spring collar to achieve some tension on the spring and to adjust suspension sag (suspension compression from rider weight). read the suspension owners manual if you have it or get it from the manufacturer website.. you can also test the suspension hydraulic action and adjustment effects by removing the spring from the shock body and then cycle the shock shaft by hand with the spring removed, you should then be able to feel the damping action and effects of adjustments..
Swe wrote:
Jan 24 2018 1:35pm
Thanks then that is probably the problem! I have not tested yet, but I see the spring is all the way ”out” so there is no pressure on (no pre-load?). I have earlier only tested turning the little blue one for the piston. Found the manual now and there is a smaller red one also that does sonething...
Yes I am not used to suspension bikes :)
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

User avatar
Hyena   100 GW

100 GW
Posts: 5624
Joined: Aug 13 2008 9:10am
Location: Sydney, Australia
Contact:

Re: Stealth FUTR owners builds and pics

Post by Hyena » Jan 25 2018 7:09pm

Happy Australia Day :)
HEB-aussieday.jpg
HEB-aussieday.jpg (119.83 KiB) Viewed 1522 times
www.HyenaElectricBikes.com
Aussie high powered e-bike kits and custom performance ebikes
New FUTR and Hyena special edition Beta frames now available!
My build and HD video thread____. My youtube channel____ Hyena Facebook page
My bike is writing cheques my body can't cash...

User avatar
Rix   100 GW

100 GW
Posts: 6424
Joined: Mar 29 2012 11:26am
Location: Fallon NV USA

Re: Stealth FUTR owners builds and pics

Post by Rix » Jan 25 2018 9:20pm

Very nice Jay, looks like nice riding weather. We had frozen rain here.

User avatar
Lash   100 W

100 W
Posts: 129
Joined: Jun 09 2015 5:33am
Location: Bendigo
Contact:

Re: Stealth FUTR owners builds and pics

Post by Lash » Feb 02 2018 5:44pm

So after looking online for a tensioner around the main chainring, it seems I am out of luck, as the biggest ones i can find only go up to about 42t. Most stop at 38t. (I have 48t)

So looks like I have to get a custom-made one, anyone with a CNC router machine? I suspect you could make a fair few and sell them and corner the market (lol)... Surprised I havent found any online. I may request one of these brands to make a bigger one, but that would probably take them a year to do?

This all comes about because of running a 7speed up the back on the mighty 500w mxus geared hub.
Over wild terrain the chain will skip off the chain ring when in the highest or lowest range gears - that creates a slight angle.

Most of you guys are running single speed with a tensioner on the rear (like me on my alpha) so you avoid this prob.

Here is a pic of some of the products i have been looking at online.

Image

Image

If you can magically find a larger one that would be awesome - otherwise can anyone see any problems with these. On the beta id use a bb-mount bracket to match these iscg3 or isc5 holes.

User avatar
efMX Trials Electric Freeride   100 kW

100 kW
Posts: 1122
Joined: Feb 15 2013 4:43pm

Re: Stealth FUTR owners builds and pics

Post by efMX Trials Electric Freeride » Feb 03 2018 1:23pm

Lash wrote:
Feb 02 2018 5:44pm
So after looking online for a tensioner around the main chainring, it seems I am out of luck, as the biggest ones i can find only go up to about 42t. Most stop at 38t. (I have 48t)

So looks like I have to get a custom-made one, anyone with a CNC router machine? I suspect you could make a fair few and sell them and corner the market (lol)... Surprised I havent found any online. I may request one of these brands to make a bigger one, but that would probably take them a year to do?

This all comes about because of running a 7speed up the back on the mighty 500w mxus geared hub.
Over wild terrain the chain will skip off the chain ring when in the highest or lowest range gears - that creates a slight angle.

Most of you guys are running single speed with a tensioner on the rear (like me on my alpha) so you avoid this prob.

Here is a pic of some of the products i have been looking at online.

Image

Image

If you can magically find a larger one that would be awesome - otherwise can anyone see any problems with these. On the beta id use a bb-mount bracket to match these iscg3 or isc5 holes.
using a clutched rear derailleur and or a narrow wide crank chain ring could also help with chain retention..
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

User avatar
Lash   100 W

100 W
Posts: 129
Joined: Jun 09 2015 5:33am
Location: Bendigo
Contact:

Re: Stealth FUTR owners builds and pics

Post by Lash » Feb 04 2018 2:51am

efMX Trials Electric Freeride wrote:
Feb 03 2018 1:23pm

using a clutched rear derailleur and or a narrow wide crank chain ring could also help with chain retention..
Ahh yes I did read about the narrow-wide chain rings, sounded like a gimmick to me, but maybe there is some truth in there?.. From memory i initially steered from the high end derailers purely on cost, but I think also there weren't any (or many) available for 7 speed.

Looking now though I see this is one from SRAM is about the only option https://www.vitalmtb.com/news/press-rel ... GX-DH,1315

Reasonable price too for a neat bit of kit compared to what it could be.

If I got this, id have to run it on my freewheel and not the cassette - hopefully ok. (until my next beta which uses a cassette)...

It also has the trigger shifter which sounds like a 'non-negotiable' to use this derailer. which im sure is on the right hand, which usually interferes with the full twist throttle, so id have to use a different throttle of some sort or god forbid a thumb throttle.

Currently i use a twist shifter on the left hand side -its upside down - but the function is great - and allows me to keep my right hand for throttle(full twist) and braking.

Thanks for your input, I think this will definitely be a big help to the chain drop issues. Another thought i had was to buy one of these simple guides and modify it with a longer piece at the top. some bolt, pop rivvets, a piece of allow, some swearing and i might get something to work. Ok for a one off but not ideal going foward.

and for good measure i emailed a mob called "fifty fifty" petitioning them to make a 48t version of their chain guide! so fingers crossed. hehehe.

Single speed is so much easier!

User avatar
Kepler   1 GW

1 GW
Posts: 3111
Joined: Nov 08 2009 9:22pm
Location: Eastern suburbs Melbourne Australia

Re: Stealth FUTR owners builds and pics

Post by Kepler » Feb 04 2018 10:32pm

The narrow wide chain ring makes a big difference. Discussed in detail a little while back.

http://www.endless-sphere.com/forums/vi ... start=1525
Current Rides

Lightest true ebike on the planet: ON ROAD https://endless-sphere.com/forums/viewt ... =6&t=74269
eBoost on facebook: http://www.facebook.com/pages/Eboost/200306283342024/
75 Volt 6 kW FUTR Beta 29'er: OFF ROAD

Tats   1 kW

1 kW
Posts: 417
Joined: Apr 17 2014 9:51pm
Location: NOR Perth, worlds best kept secret, Australia

Re: Stealth FUTR owners builds and pics

Post by Tats » Feb 05 2018 7:12am

On a different bike...but fitting narrow wide and sram clutched DR solved my chain drops. Used a friction shifter for a TT bike on a Paul’s thumbies instead of trigger. Friction shifting works great with the sram

User avatar
Cowardlyduck   10 MW

10 MW
Posts: 2430
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: Stealth FUTR owners builds and pics

Post by Cowardlyduck » Feb 08 2018 6:15am

So I was mounting my Adaptto Midi-E today when I noticed something was not quite right.
Either the Adaptto controller is not flat or the bottom of my Alpha frame is not flat:
Image

I'm going with the latter, but I'm not too concerned as it's pretty sturdy anyway and once the controller is bolted to the frame it might even add a bit of structural rigidity to it. :lol:

Anyone else come across this?

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

User avatar
efMX Trials Electric Freeride   100 kW

100 kW
Posts: 1122
Joined: Feb 15 2013 4:43pm

Re: Stealth FUTR owners builds and pics

Post by efMX Trials Electric Freeride » Feb 08 2018 1:30pm

when the frames are welded up during manufacture there can be some metal distortion from the high temperature welding.. its normal and shouldn't be any structural problem..
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

User avatar
Rix   100 GW

100 GW
Posts: 6424
Joined: Mar 29 2012 11:26am
Location: Fallon NV USA

Re: Stealth FUTR owners builds and pics

Post by Rix » Feb 08 2018 10:09pm

Cowardlyduck wrote:
Feb 08 2018 6:15am
So I was mounting my Adaptto Midi-E today when I noticed something was not quite right.
Either the Adaptto controller is not flat or the bottom of my Alpha frame is not flat:
Image

I'm going with the latter, but I'm not too concerned as it's pretty sturdy anyway and once the controller is bolted to the frame it might even add a bit of structural rigidity to it. :lol:

Anyone else come across this?

Cheers
My Alpha was like that. Didn't affect anything, it rode very rigid. You will notice less flex over your Fighter.

User avatar
Hyena   100 GW

100 GW
Posts: 5624
Joined: Aug 13 2008 9:10am
Location: Sydney, Australia
Contact:

Re: Stealth FUTR owners builds and pics

Post by Hyena » Feb 08 2018 11:42pm

yeah it's well documented, and it's not an issue. Also you've only bolted down one end so it'll pull in a bit once you tighten down the other end.
Yours is my own chrome one right ? Ribs along the bottom or not ? From memory the earlier ones had a flat bottom of thicker material but no ribs. In the later ones they used ribs for strength and then thinner bottom sheet, which can actually deform and ripple a bit with the heat. But it's still a better love story than twilight :lol:

My fave alpha shot of late:
alpha1.jpg
alpha1.jpg (166.08 KiB) Viewed 1222 times
www.HyenaElectricBikes.com
Aussie high powered e-bike kits and custom performance ebikes
New FUTR and Hyena special edition Beta frames now available!
My build and HD video thread____. My youtube channel____ Hyena Facebook page
My bike is writing cheques my body can't cash...

User avatar
Cowardlyduck   10 MW

10 MW
Posts: 2430
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: Stealth FUTR owners builds and pics

Post by Cowardlyduck » Feb 08 2018 11:56pm

Good to know there's nothing to worry about, thanks guys!

Yeah, this is your old Chrome Alpha Jay so no ribs, just the thicker plate which is a bit tougher to drill through for mounting holes.

I'm surprised they made them at all without the ribs since both the Fighter and Bomber have had them for years now.

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

NoFanBoiz   1 W

1 W
Posts: 51
Joined: Jan 04 2016 3:51am

Re: Stealth FUTR owners builds and pics

Post by NoFanBoiz » Feb 09 2018 5:25pm

Cowardlyduck wrote:
Feb 08 2018 6:15am
So I was mounting my Adaptto Midi-E today when I noticed something was not quite right.
Either the Adaptto controller is not flat or the bottom of my Alpha frame is not flat:
Image

I'm going with the latter, but I'm not too concerned as it's pretty sturdy anyway and once the controller is bolted to the frame it might even add a bit of structural rigidity to it. :lol:

Anyone else come across this?

Cheers
shoulda gotta qulbix

User avatar
Rix   100 GW

100 GW
Posts: 6424
Joined: Mar 29 2012 11:26am
Location: Fallon NV USA

Re: Stealth FUTR owners builds and pics

Post by Rix » Feb 09 2018 10:08pm

NoFanBoiz wrote:
Feb 09 2018 5:25pm
Cowardlyduck wrote:
Feb 08 2018 6:15am
So I was mounting my Adaptto Midi-E today when I noticed something was not quite right.
Either the Adaptto controller is not flat or the bottom of my Alpha frame is not flat:
Image

I'm going with the latter, but I'm not too concerned as it's pretty sturdy anyway and once the controller is bolted to the frame it might even add a bit of structural rigidity to it. :lol:

Anyone else come across this?

Cheers
shoulda gotta qulbix
Yah, nothing against the qulbix, just don't like the lower bottom bracket location.

User avatar
Cricket_Swe   100 W

100 W
Posts: 155
Joined: May 22 2016 4:01am
Location: Sweden

Re: Stealth FUTR owners builds and pics

Post by Cricket_Swe » Feb 10 2018 6:29am

My frame is also like that Cowardlyduck

User avatar
Cowardlyduck   10 MW

10 MW
Posts: 2430
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: Stealth FUTR owners builds and pics

Post by Cowardlyduck » Feb 10 2018 5:15pm

Cricket_Swe wrote:
Feb 10 2018 6:29am
My frame is also like that Cowardlyduck
Thanks! Yeah good to know I got nothing to worry about.

I'm going to order an 18" tire to go with my 18" MC rim soon. Probably going to go with the SR241.
Does anyone know if the 3.5"or 4" version will fit comfortably on the rear?
I want something a bit fatter than the 3" Duro's I'm used to from my Fighter.

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

User avatar
Rix   100 GW

100 GW
Posts: 6424
Joined: Mar 29 2012 11:26am
Location: Fallon NV USA

Re: Stealth FUTR owners builds and pics

Post by Rix » Feb 10 2018 8:52pm

Cowardlyduck wrote:
Feb 10 2018 5:15pm
Cricket_Swe wrote:
Feb 10 2018 6:29am
My frame is also like that Cowardlyduck
Thanks! Yeah good to know I got nothing to worry about.

I'm going to order an 18" tire to go with my 18" MC rim soon. Probably going to go with the SR241.
Does anyone know if the 3.5"or 4" version will fit comfortably on the rear?
I want something a bit fatter than the 3" Duro's I'm used to from my Fighter.

Cheers
An 3.00-18 SR241 is 3.4 inches wide on a 18x1.40 rim. There is not much room on either side of the swing arm, I am certain a 3.50-18 SR241 will not fit as its closer to 4" wide and needs a minimum of a 1.6" wide rim. The OD of the tire is much larger than the 3.00-18 tire which moves the widest part of the tire closer to the front of the swingarm where spacing narrows and slants inward. A 3.50" wide tire will probably not fit and there is no way the 4.00-18 tire will fit. I had that tire on my old CRF230F and it was very big tire with and OD of around 26" and weighed a lot.

Post Reply