New 24' slopestyle freeride build, getting serious!

[Thud]

+1 for motorcycle brake lever set up.....(I do that on all my bikes as a 1st set up operation)
Having it consistant from all your 2-wheeled vehicles is just common sence from my perspective......makes the transition from bike to bike way easyer.

 

[adrian_sm]

Or go for a left hand throttle.

 

[bzhwindtalker]

But then it would not be standartd and getting used to that would take some time again!

 

[adrian_sm]

ebikes.ca sell them. [EDIT] Looks like they are out of stock at the moment

Doesn't take much getting used to. I made the switch years ago for similar reasons, my right hand was doing all the important stuff, throttle, front brake, and rear derailuer. When I swapped for a left hand throttle then right hand was free for brakes and the important rear shift. Left could focus on throttle. All good.

 

[bzhwindtalker]

I just swapped the hydro lines, worked nice! Does not seems like I got air bubbles in the brakes, I did some testing outside (weather sucks) and it seems to brake as well as
before, only with reversed brakes And this is how the motor-driven sproket looked like after my incident yesterday

I grinded the broken parts off and cleaned it overall, it will have to hold until I find another 28t sproket.... I need a new cassete and a new derailleur too. This systems is chewing drive components quite fast. But my rate of crash and the kind of riding I do is not helping either

 

[GITech]

Nice Vid!

Wow, look at that sprocket!

Just seeing you go fast and take jumps scares me right now. I broke my collar bone in 3 pieces ~2 weeks ago doing only ~7mph...

Good work man!

Later,
Jay

 

[bzhwindtalker]

How did you do that? Bummer, 7mph crash is not something you can brag about I am quite good at crashing, I can fall at high speed without much trouble, but shit happens unfortunately hope you recover well!

 

[bzhwindtalker]

Went for a quick ride 10 min ago, and as I wanted to skid the rear wheel to turn back on a small asphalt road, I inverted front and rear brake, going maybe 35kph
I went over the bars before I realised what was happening. I was not wearing a helmet of course :? I rolled on my side and hit hard with my elbow, that is really painfull now
I don't think I really broke a bone but it was close if I didn't. I have a pack of ice on it rigth now, I will most likely be fine.

Now I need to change my frocking reflexes!!!

 

[bzhwindtalker]

lol at the automatic text replacement, +1 to moderators

f*ucking= frocking

 

[whereswally606]

check yourself before you wreck yourself fool!

the wise words of Mr T.

on a serious note hope your riding again soon

 

[adrian_sm]

Ouch! Sorry to hear of the stack. Hope you heal up quickly.

At the risk of sounding like a broken record, go for a left hand throttle. Much less risky if you forget than swapped brake levers.

 

[bzhwindtalker]

I feel somewhat better this morning... Bad but better. I still put my bike to charge this morning and weather is good this weekend! I will take it easy at first but I can't stand not to ride when I can.

 

[bzhwindtalker]

A mate took some nice pics of the bike in action this afternoon, I feelt way better this morning so I had to get riding again

Some may notice I changed the stem and the handlebars, the bike feels way better and plays nicer with the shorter stem and motorcycle handlebars 8)


Hope you like them!

 

[bzhwindtalker]

Working on the new design... I did not receive my tubes yet.

 

[bzhwindtalker]

just about time I guess...

This is the result of a 1meter drop on concrete with almost no speed, this frame was not close to the toughness I needed. Now the problem is that I will want to rush to get the new frame done :?

 

[bzhwindtalker]

Allrigth i'm racing there next year : rock and solex

Old school French racing. Thats me on a fiends solex practicing cornering! only one electric was there, with a brushed motor and slas... but last year it was an electric that won. I have a quite good idea of what I need to do to have a winning setup. 150 ICE riders's butt to kick is not something i can ignore

 

[Stone Meadow]

I understand how the mid-mount hub motor transmits power, but what I haven't figured out is how you attach the freewheel to the side cover of the motor, as in this photo:

Is there an adapter? Do you bolt it yo the brake disc flange? Bolts through the case? Something else? Thanks!

 

[bzhwindtalker]

this is how I did It :

I do not have a freewheel on the motor, just a track bike sprocket+lock nut screwed on the regular right side of the motor. As the lock ring was still unscrewing from torque, I tack welded it to the steel treaded insert. I would ned to grind that of to be able to change the motor sprocket, but it is do-able!


I have nothing left to ride from last failure, so I pulled an older frame from my pile of busted bikes, this will probably do the job while I build my next frame :

It has a nice feature : the batt will fit inside the triangle, resting on the two front motor mounts. how many riding hours before destruction?

 

[Stone Meadow]

this is how I did It :

I do not have a freewheel on the motor, just a track bike sprocket+lock nut screwed on the regular right side of the motor. As the lock ring was still unscrewing from torque, I tack welded it to the steel treaded insert. I would ned to grind that of to be able to change the motor sprocket, but it is do-able!

Ah...thanks! Any chance you can snap a photo to show the naughty bits? :wink:

Oh, and your new wheels? I'm guessing it lasts 1 hour of harsh riding... :lol:

 

[bzhwindtalker]

This is exactly how I did it :

You may notice I removed the thick steel flanges, this saved an impressive amount of weight! and it makes the motor quite small. To anybody searching for a big mofo outruner that makes huge torque and is drivable with any cheap ebike controller at only 5,5kg... search no longer :

220 mm external diameter and 32mm stator, this ends up as a 32x200mm motor, this is a lot of motor!

I tryed something on this frame, with dynema kites lines and marine grade PPU 100 glue. It is an experiment but I am quite confident!

Anyway if this thing holds together while i build a real frame (No tubes yet!!! it's been a while) I'll be happy enough to have something rideable.

Adam

 

[Stone Meadow]

Thanks Adam...now let me make sure I understand correctly! :lol:

In the blow-up photo below I see what appears to be a cut-down freewheel that's been threaded onto the boss that holds the cassette for a RWD hub motor, right? You just tacked it in place to prevent it coming loose...correct?

Edit: Not a cut-down freewheel. Just a regular thread-on sprocket/nut...

 

[bzhwindtalker]

You are rigth, exepted that the tack is on a lock ring and not on the screw-on sproket itself. It is not overly complicated, you just need a welder, I did that with my stick welder... This method seems pretty bombproof to me!

 

[bzhwindtalker]

The glue cured, it looks nice and strong but this thing produce a lot of torque! Time will tell...

 

[Stone Meadow]

You are rigth, exepted that the tack is on a lock ring and not on the screw-on sproket itself. It is not overly complicated, you just need a welder, I did that with my stick welder... This method seems pretty bombproof to me!

Thanks for the clarification! I have plenty to welding capability...just not enough ebike experience to know quite what I was looking at. I'm doing my first build for my wife now (a low powered front hub), but am planning out a more ambitious approach for my own bike. :lol:

 

[Thud]

Biz,
I do like the glue idea...but I fear you need a little more prep work to the alloy for proper adheasion. You went right over the decals on the frame?.....if they are any polymer based sticker...its only a matter of time.

Sorry to be a buzz killer...a quick google would have had you strip the frame at the bonding points & etch the metal for a better chance of success...No big deal as an experiment, Just don't be discouraged when it fails.

You will see potentialy a 400% increase in joint strength following established procedures for bonding metals with epoxy.

Hope I am prooved wrong.....keep up the good work.