Started building the bike

kmarcetjr

Member
Joined
Mar 25, 2017
Messages
95
Well today I started the build, not much really, first I put puncture resistant tire liners in the tires, then I mounted my little collapsible basket on my handlebars, then I started on the actual build.

I mounted the sprocket on the wheel as per the instructions sent with the kit. I said to make sure the sprocket was tightened evenly in a star pattern and to make sure it was true, well I did all that but it seems like no matter how I tighten the bolts for the sprocket it's still has a little wobble to it, not much, I mean just noticeable. Will this cause the chain to jump off or something maybe worse?
 


crassius

Well-Known Member
Joined
Jul 23, 2012
Messages
4,575
a bit of in/out wobble can be lived with - up/down is more important as that will give you a tight spot in the chain
 

Wags

Active Member
Joined
Aug 26, 2016
Messages
197
Well today I started the build, not much really, first I put puncture resistant tire liners in the tires, then I mounted my little collapsible basket on my handlebars, then I started on the actual build.

I mounted the sprocket on the wheel as per the instructions sent with the kit. I said to make sure the sprocket was tightened evenly in a star pattern and to make sure it was true, well I did all that but it seems like no matter how I tighten the bolts for the sprocket it's still has a little wobble to it, not much, I mean just noticeable. Will this cause the chain to jump off or something maybe worse?
Chuck the stock sprocket clamp and either get the clamshell that locks to the hub or invest in a disk break hub and get the adaptor that allows you to mount the sprocket using those holes. In both case's the sprocket is not only true but also better for you spokes.
 

bakaneko

Well-Known Member
Joined
Nov 16, 2015
Messages
1,351
small wobble is fine. just make sure that the bolts are tight. remember that depending on your engine those bolts will sustain 1.5-2.5 hp of torque. star or x pattern with the middle bolt first. i like to double nut them to prevent them from backing out. another big concern is your chain tensioner. this has to be very tight (dont strip them though...) and depending on your bar width you might have issues. here is a list i would watch out for

- small wobble is fine less than 1/2 inch wobble. tighten down rear sprocket bolts hard and possibly double nut them. if you are riding around and don't notice any backing out then you don't need to double nut but it is safer imo
- chain tensioner needs to be strongly tightened and depending on your bike bar width you might need to add reinforcements
- chain tensioner roller should be at the bottom of slot. this will allow you to adjust the roller height up as your chain stretches (it will stretch 1-2 in in first few rides).
- chain might jump (4-stoke) or bundle (2-stroke) on/in drive sprocket. this is normal until the drive sprocket teeth are shaped by the force of riding and the engine. make sure the chain tension is high during 1st 1-2 miles
- lube your chain regularly (i do it ever 200 miles with my oil changes)
- safely watch your drive chain and rear sprocket while riding at various speeds. obviously dont do this in heavy traffic but a secluded road. at different speeds the alignment might behave differently and have issues. ie you can start out fine at 10-15 mph and then have issues at 20-25. watch the chain to see what is happening, safely.
 

kmarcetjr

Member
Joined
Mar 25, 2017
Messages
95
You are calling that build 'Finished'?
I hope you just mean its running, but you still have cable and wire work still to do...
No it's not finished, just running. Yeah I've got a few loose ends to take care of then it will be finished.
 

KCvale

Motorized Bicycle Vendor
Joined
Apr 18, 2010
Messages
3,518
No it's not finished, just running. Yeah I've got a few loose ends to take care of then it will be finished.
Cool as that could really be a nice looking bike if you cleaned up the cable/wiring mess ;-}
 
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