Calzone
Gear Whore #1
- Local time
- 12:57 AM
- Joined
- Nov 11, 2008
- Messages
- 16,953
- Location
- The Gateway To The Hudson Highlands
Cal,
Check to see that your clamp bolt hasn't stretched. I see this, especially with the flexibility of titanium components, they effectively stretch steel bolts even to the point of narrowing them. A grade 8 or 10 will take care of that for a longer while than standard grade 5 mild steel.
Check the clamp surfaces themselves when tight to make sure they aren't bottoming out against each other, preventing it from fully tightening.
Another thing you can do is the "beer can" shim. It's just that, a piece of aluminum can to take up space within the clamp.
I'd like to see this thing one day.
We have a gen 1 Stumpjumper at the shop which I may bite on. I love the ancient mountain bikes.
Phil Forrest.
Phil,
I think a stretched 6mm bolts were the case that was compounded by my upper body strength's use of leverage on the backsweep on the bars.
I used Ti bolts which have some spring to them, anyways more than steel. I went back to steel bolts. Also I had a wider shim to prevent handlebar creaking, but the anodize and the machining are smooth. Double sided tape to increase friction was not enough.
I am now trying a narrow shim that has ridges that offers some bite into both the stem and bar.
One day let's ride.
Cal