Learning the hard way

J

Jfarns03

New Member
So I ran into a little problem, my clutch is a #35 chain, so I ordered what I thought to be all #35 sprockets. ( including my two sprockets on the jackshaft) Well my rear sprocket is a 410 - 415 and I didn't know that you go from 35# clutch to jackshaft / 410 jackshaft to 410 rear sprocket. The only way of correcting this I guess is reorder my sprocket and a new chain. I've found a chain on eBay that has 110 links , not sure how many feet that is. Wish all this stuff could've been #35 to make it easier but I guess I should've looked more into it. Oh well
 
Hi J
Will here I built a hub for my bike ,.I use #35 chain and sprockets the rear wheel has a gokart split #35 sprocket which I have been using for the last 3 years still works good ,.Check out my site for the pictures of the hub.
Will michaud
if you have ques. email me
 
I checked it out and I see exactly what you did there. The Quick change is a good idea. Where I live is exceptionally hilly but I plan on using it for flat surfaces. 60 tooth seems like a really tall and slow gear. 10-15 mph at 3k I would imagine. I'm looking to go around 30!
 
jfarns03
my clutch is 9tooth the primary sprocket is 26 t jack shaft is 11tooth and the rear wheel is 75tooth ------ 26 devided by 11 =2.36 rear wheel 75t devided by 9t=8.33 8.33x2.36=19.66 this is the drive at the back wheel, I do not have a speedo so when riding along side a car at 2800 rpm I am doing approx 25 to 28 mph and I can pull any hills up here in colfax ca (northern calif) that includes dirt roads,. hope this helps you . Will
 
I run a 79cc HF and it uses a clutch so if you are using a 2 stroke that could make a difference but I think you could use the same method( I think)
Will
 
beginner01
I don't quite understand what you have in mind about the #35 chain ,. My son runs gokarts at 80 mph with #35 chain and I have run this same chain on my mb at 25 to 30 mph with no problems for 3 to 4 years . please help me to understand what you mean.
Will
 
beginner01
I don't quite understand what you have in mind about the #35 chain ,. My son runs gokarts at 80 mph with #35 chain and I have run this same chain on my mb at 25 to 30 mph with no problems for 3 to 4 years . please help me to understand what you mean.
Will
 
It's not the same chain. The first number on standard chains in the USA refers to the number of 1/8s of an inch between pins center to center (pitch). So 41,415,410 chain are all 4*1/8 =.5" pitch. 35 chain is 3/8" pitch. 520 chain is 5/8" pitch. Smaller pitch sprockets are used to get more teeth into the same size sprocket to get different ratios, also a smaller pitch chain will be more efficient than a larger one for the same diameter sprockets and gear ratio. You can change the output jackshaft sprocket to a 42 or 415 or whatever size half inch pitch you're using and keep the engine to Js chain 35. It don't matter really.

Motorized bikes and regular bicycles use half inch pitch chain, go karts and minibike will use 35 chain because of the sprocket diameter limitation due to the tiny rear wheels they use.
 
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