10-speed friction shifting probs gettin' a look-see today.

[lungimsam]

Bleriot auto-shifting getting worse. Takin' it to the LBS for a check up. Will let you know if and how they fix it. Might be helpful to others if they can.

 

Maybe I'll try to go to a 7-speed cassette. Now that would be cool.

[Montclair BobbyB]

Auto-shifting (IMO) might indicate a shift lever problem (ie lever not tight enough).  Or could it be that there's a certain (micro) amount of cable movement you can't avoid with friction shifters, and a 10-speed cassette just amplifies this???   For me a 5-7 speed freewheel/cassette is optimum for friction shifting... I think you'll have less of (or no) problem with auto-shifting with a 7-speed cassette (as long as you keep your friction shifter tight enough).  Good luck.

BB

[lungimsam]

Thanks for the info! I appreciate that.

 

They mechanic said looked like the lever needed tightening, and the shifting cable needed tightening, too.

 

I'll see how it does on the commute today.

 

If I continue to have probs, I may go to a 7 speed cassette.

 

 

 

[lungimsam]

It was great on the ride into work today.

 

At the LBS, I asked about switching to a less-than-10-speed cassette, and he said the 10-speed is going to be fussier for friction, but it should still be able to work correctly.

 

He was very nice to take a look at it and fix it while I waited. They are always very nice there at the shop.

 

If you are ever in Columbia, MD, stop by Princeton Sports and take a look around.

 

[lungimsam]

Still auto-shifting away after the first ride. Bike is really unrideable this way as it hurts the back when the gear unexpectedly shifts. Similar to the effect you get when the chain skips.

 

The only thing I could think of was that I noticed the surface of the DT shifter lever the previous owner had mounted to the bar end pod was not mating totally flat to the bar end pod, enabling some wiggle and instability in the lever.

Also, the bar end pod showed alot of wear to that raised square bump-out on the inside surface, so it won't take an adapter because the edges are worn.

 

So I am getting a new shimano pod + adapter installed (adapter similar to the one's Riv sells). The LBS had some. They fit like a glove. Then a proper mount of the lever. And I hope that does the trick. Otherwise I don't know what to do next. Start tearing my hair out. Crying may help.

 

 Maybe new chain and cassette. I hope this doesn't get expensive.

 

[Patrick in VT]

On Wednesday, September 5, 2012 12:38:46 AM UTC-4, lungimsam wrote:

Still auto-shifting away after the first ride. Bike is really unrideable this way as it hurts the back when the gear unexpectedly shifts. Similar to the effect you get when the chain skips.

is there a particular reason why you want 10spd friction?  not saying it can't work or won't work, but indexing is going to work much better and without the fuss.  indexing is simply more precise with 10spd tolerance.  friction is dreamy up to 8spd for me; indexing for 9-10spd.

[Jude]

I just swapped the 9-speed cassette on a RB-T CL frankenbike for an 8-
speed spare I had lying around (cassette and chain). I was having all
kinds of problems with ghost shifting and holding the gear. Eight
speed works like a dream with the friction ... it's like a new bike.

Switch to 8 - you won't regret it.

[Toshi Takeuchi]

The microshift 10-spd bar-end shifters seem to be a good compromise. It is "micro-indexed" so that it almost feels like friction, but there is enough resistance so that ghost shifts don't seem to occur in my short testing.

Toshi

[lungimsam]

 

"is there a particular reason why you want 10spd friction? "

 

The bike came with a 10-speed cassette. I'd rather have less, but keeping it because it is there.

 

I like friction. More fun and feels good and quiet.

 

If this thing turns out to be unsolvable, I will go to 8 speed cassette and see if that fixes it.