Bronson/ SC upper l...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Bronson/ SC upper link problems?

4 Posts
3 Users
0 Reactions
64 Views
Posts: 0
Free Member
Topic starter
 

so on my 2014 alu bronson i've recently had a problem with excessive play in the rear end. I suspected it to be either bearings or shock bushes, all replaced problem persisted. So to cut the story short i've narrowed it down to being a worn upper link where the lower end of the shock mounts, the not threaded side has become, lets say oval.

has anyone encountered this before? The mount has never been loose and correctly torqued

cheers ditch

 
Posted : 19/10/2016 10:51 am
Posts: 0
Free Member
 

Lateral play or vertical play?

The shock shouldn't see any side loads in operation and certainly shouldn't be contributing to the lateral stiffness of the frame. So if this bore is oval bearings must have been worn for a while to allow movement.

What shock are you running? I recently replaced all bearings and bushes as felt like bushes had gone (vertical clunking) but persisted. Turns out something had come loose inside the shock which TF tuned fixed no bother. This was with CCDBA.

 
Posted : 19/10/2016 11:18 am
Posts: 0
Free Member
Topic starter
 

vertical play, just the one eye end where the shock mounts as the opposite side is threaded. It's not a massive amount but enough to notice, the bolt head does move a little fore and aft when compressed that's how I noticed the wear at first. However to be honest bearings weren't bad at all, possibly the shock mount being worn slightly has affected it. I've upgraded those to the stainless mounts from mojo and I'm running a fox float x which is serviced regularly

 
Posted : 19/10/2016 11:56 am
Posts: 1503
Full Member
 

I've had the same clunking with my CCDBA, it's like a more extreme version of the click as the neg/pos chambers equalise at the beginning of travel.

TFT replaced some internals under warranty a year ago but the problem has now returned.

They did suggest that the Santa Cruz VPP system puts rotational stress on the shock cos the upper shock mounts flex under load, could that contribute towards ovalised mounts? TFT suggested using a heavy duty mounting kit to prevent wear.

 
Posted : 19/10/2016 1:14 pm
Posts: 0
Free Member
Topic starter
 

ive contacted the guys over at jungle products who distribute the SC spares and they've responded with that they've never heard of this sort of damage to the bores but are going to look into it once i get some pictures sent over to them

 
Posted : 19/10/2016 1:21 pm

6 DAYS LEFT
We are currently at 95% of our target!