- Slight Clunk from Rear Suspension – Nukeproof Mega
Having trouble identifying the source of some clunking on my 2018 Mega.
There’s a small amount of vertical play and a bit of a clunk if you lift the bike up and put it down. All of the bolts are tight – nothing is loose. The last time I had this was when one of the shock bolts was a bit loose, but this is obviously not the cause in this case.
There’s no lateral play anywhere, but the bearings are still original, so could probably do with being replaced.
JPPosted 1 month ago
OK – thanks. I’ve got a bearing kit but I don’t think it includes any bushings. Can’t see any bushings on CRC either, so not sure what to do.
Mega bearing kit is frame bearings only, it doesn’t have the shock bearing.
According to the manual, the hardware sizes are
F: 8mm x 25mm
R: 8mm x 30mm
Worn hardware will be fine to ride tomorrow but I’d replace ASAP.
I think you’ll need https://www.tftuned.com/rear-shock-bearing-kit-deluxesuper-deluxe/p3689
Plus RockShox hardware which is 8mm x 25mm for the other end
Then the DU bush is 12.7mm
I’d replace it all if you aren’t 100% sure to try and make sure you sort it in one go.Posted 1 month agobig_scot_nannySubscriber
When I’ve had this before (Mega and a Stumpy), it was the shock itself that needed servicing.
With the bike static, wheels on the ground, hold the shock shaft with one hand whilst you lift the bike up slightly by the saddle – don’t lift the wheels off the ground, but lift enough to tell if there is a bit of free travel of the shaft into the air can – thats what it has been for me.
Just a check, but you might also need to do your bearings.Posted 1 month ago
For future reference, (as so many of these sorts of thread come up on searches and most have no final resolution) it was the bearings. All were shot apart from the Horst Link pivot. Shock mount bushes/bearing and shock were fine.
It was interesting to see how bad the old bearings were – it was almost impossible to turn them – yet the suspension still felt fairly supple.
JPPosted 1 month ago
You must be logged in to reply to this topic.