Chain keeps tightening

Rujack · Today, 01:56 PM

The chain on my son’s 70cc keeps tightening while riding. It’s a 2021 SSR that I bought new a couple of months ago. Yesterday I replaced the stock chain with a pro taper as it seemed the stock chain was binding, but clearly something else is going on.

Today I’m going to check the axle for straightness and the spacers for 90 degrees.

Is there anything else recommended to check?

Mudflap · Today, 03:09 PM

Engine mounting bolts.

Thumper · Today, 03:10 PM

Maybe the axel pushes back when you tighten the axel bolt (swingarms push back)???

Try setting it loose, then tighten the axel bolt.

Today, 01:56 PM	#1
Rujack Join Date: Sep 2024 Posts: 1	Chain keeps tightening The chain on my son’s 70cc keeps tightening while riding. It’s a 2021 SSR that I bought new a couple of months ago. Yesterday I replaced the stock chain with a pro taper as it seemed the stock chain was binding, but clearly something else is going on. Today I’m going to check the axle for straightness and the spacers for 90 degrees. Is there anything else recommended to check?
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Today, 03:10 PM	#3
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,628	Maybe the axel pushes back when you tighten the axel bolt (swingarms push back)??? Try setting it loose, then tighten the axel bolt. __________________ -NOS 2020 KTM 250SX (2-stroke motocross)
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Today, 03:09 PM	#2
Mudflap Join Date: Sep 2014 Posts: 1,915	Engine mounting bolts.
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