CBR 600F2 1991 - 1994 CBR 600F2

Chain Tensioner Break

Old 03-03-2019, 04:29 PM
Junior Member
Thread Starter
Join Date: Oct 2018
Posts: 5
Default Chain Tensioner Break

Was riding down the road the other night with some of my buddies and the plate that goes on the end of my swing arm cracked in half and caused the axle to go forward and the chain to fly off the rear sprocket and the wheel to go crooked. The end of the swing arm is bent a little after the plate broke. Managed to stay up but gave me a little scare. Anyone else have this problem?
Old 03-03-2019, 06:01 PM
Phil314's Avatar
Senior Member
Join Date: Sep 2008
Location: 45.2521, -93.5612
Posts: 408

Glad you're ok.

This is the first time I've heard of that. My initial thought is that you have the sequence of events wrong.
That plate doesn't hold your axle in place. It's thin and it's cast. It's not meant for strength.
It's more for adjusting the axle. The axle, spacers and axle nut clamp your axle in place.
If you axle was loose for some reason, it would slide forward and back and that's what broke the plate.

The question is - why was your axle loose? Have you had the rear wheel off recently?
Check the threads on the axle, I've had a couple axles strip with age.
Make sure the spacers are all in the correct places.
Make sure the rear brake caliper bracket is installed correctly.
Make sure you have that weird washer thing behind the axle nut.
Old 03-04-2019, 09:31 AM
wes 17's Avatar
Senior Member
Join Date: Sep 2012
Location: wales
Posts: 352

I imagine that was quite alarming but you got away with it mate. This should not have happened.
If your “adjuster” was used for “tensioning “ then this could have damaged the plate you speak of.
Check your using correct method and sequence for adjusting the chain or wheel removal/replacement and if your not happy with how tight things should be just use a torque wrench to confirm.
Best of luck mate.

Last edited by wes 17; 03-04-2019 at 09:37 AM.
Related Topics
Thread Starter
Last Post
CBR 1000F "Hurricane"
02-16-2017 03:41 AM
CBR 600F3
02-14-2011 08:38 PM
F4i - Main Forum
07-20-2010 10:16 PM
jalate compa
CBR 600F2
09-24-2009 03:09 PM
CBR 600F2
09-27-2006 11:56 PM

Thread Tools
Search this Thread
Quick Reply: Chain Tensioner Break

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.