Skip to content
View in the app

A better way to browse. Learn more.

Trials Central

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Chain Tensioner On Pro

Featured Replies

Took off chain tensioner on my pro last night to straighten it, now I'm stuffed if I can see how one person can replace it. Are there any tricks that I should be using?

I find it easiest if you compress the spring in the vice first and hold it compressed with a plastic tie while you fit it to the bike then just cut the tie off once its in place

absolute nightmare, i ended up with bike upside down on handlebars,doesnt do rear plastics any good though!

I agree, its a nightmare, I ended up selling my soul to the devil to get mine back on.

  • Author

Thanks guys. I had a feeling I was in trouble when I heard the loud "twang" when I took it off.

Why take it off in the first place? What's up with a set pipe grips, moleys & bfh?

  • Author
Why take it off in the first place? What's up with a set pipe grips, moleys & bfh?

Definitely a structural type... :wacko:

Edited by TooFastTim

  • Author

Ahh, tried bending it in the vice to see whether I could cable tie it like Blocky suggested, when I took it out it had changed shape just enough to bolt on without any sweat.

Removing or installing the chain tensioner an spring are a 2 minute job if done correctly with no more tools than a screwdriver and a pair of pliers.

To remove first take the spring tension off the chain tensioner arm then remove the pivot screw. With the tension off the arm it should come out very easily.

To install put the assembly together with the spring on upside down,yes I said upside down! Make sure that the spring will be in the correct position when it is rolled over.

Start the pivot screw into the swingarm mount, screw it in approx. 1/2 way do not tighten it all the way yet.

Now roll the spring over making sure the spring does not lock into the tensioner arm, that is the last step, the front part of the spring will hit the swingarm at a angle, take a large flat blade screwdriver or flat bar stock and place it against the spring above the pivot bolt and hit it with your hand. The spring will pop into position with very little effort. Now tighten the pivot bolt slowly centering the spring as you go, when the bolt is tight then take pliers and install the spring on the tension arm and your done!

I have been using this method for years with no damage or loss of spring pressure. After you try it you will be surprised how easy and fast it actually is to do :wacko:

  • 11 years later...

Okay Spinner. We need you to elaborate. :shutup: "Upside down"? - Upside down on a horizontal plane I assume? Or do you mean rotated back to front?
How can it be possible to rotate the spring 180 degrees back once you have engaged the bolt through into the S/Amount - impossible, (maybe it's a syntax/description issue).

Three lads here have just battled for about an hour and a half, we finally got it done but. And we're no newbies. I've done a hundred tensioners, and I know they can be nasties, but this one on our GG 280TXT Pro is a doozie!

How do you mean upside down? Any chance of a diagram or picture?

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.