CFMoto 450nk

ProDigit · Yesterday, 07:06 PM

Talk about sprockets,
I knew the 450 would have a larger pitch than a 428 chain, so I had ordered a jt sprocket JTF520.17rb.
While the sprocket fits, it does have some more play on the shaft than the OEM sprocket.
The other thing I found weird was that the sprocket seemed to have a larger pitch than the chain..

There doesn't appear to be a chain pitch between 428 and 520, so I'm wondering what chain this bike uses, and if 520, 525, and 530 chain have different pitches?

I did end up buying an 18t steel sprocket that may fit the shaft, and if it does fit I'll send my rear sprocket to rebelgears for a 38t fitting a 520 chain, for a total of 38.7% increase in gearing.

I noticed I could even start the bike in 3rd gear, but barely. Considering each gear is 20% spaced from one another, I guess 40% upgearing is probably the maximum for starting from a dead stop without stalling the bike.

Yesterday, 07:06 PM	#1
ProDigit Join Date: Aug 2013 Posts: 311	Talk about sprockets, I knew the 450 would have a larger pitch than a 428 chain, so I had ordered a jt sprocket JTF520.17rb. While the sprocket fits, it does have some more play on the shaft than the OEM sprocket. The other thing I found weird was that the sprocket seemed to have a larger pitch than the chain.. There doesn't appear to be a chain pitch between 428 and 520, so I'm wondering what chain this bike uses, and if 520, 525, and 530 chain have different pitches? I did end up buying an 18t steel sprocket that may fit the shaft, and if it does fit I'll send my rear sprocket to rebelgears for a 38t fitting a 520 chain, for a total of 38.7% increase in gearing. I noticed I could even start the bike in 3rd gear, but barely. Considering each gear is 20% spaced from one another, I guess 40% upgearing is probably the maximum for starting from a dead stop without stalling the bike. __________________
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