well… they are not interchangeable, but as they have both sorts you should be able to find something. Bit cheaper as well.. but they go wrong because they are ratchet based.Posted 8 years ago
The other option is you can run the shimano 8/9 speed on the the non-ratchet mode.. you just oush it how far you need.. that might appeal to your retro side.
(I just replaced my 8 speed on thursday so I am up on my knowledge you see)
I run 8 speed on my only MTB, an 853 Inbred, seems that after 12 years and 3 bikes the rapidfire (or whatever they are called) are dying as they won't shift up in neat shifts.
The only replacement 8 speed shifters I can find are these thumbies –
Now I haven't ridden a bike with these since the 80's are they gonna be bad? I am a bit of a closet luddite (avid cable discs and middleburn cranks) so the nothing to go wrongness of them appeals.
Bit reluctant to buy 2nd hand cheapie 8 speed off ebay as they are likely worn too.Posted 8 years ago
I like thumbshifters a lot. I ran a set of dura-ace/Pauls ones on my main mountainbike for ages. The shifting action is fantastic, they are totally reliable, it's fantastic being able to "trim" the front mech so that it never rubs and in friction mode they are much less sensitive to muck in the mechs and cables.
The only reason they are now on my cargo bike rather than the mountain bike is that I started focussing more on the downhill gnarly bits and less on the long days in the saddle, and they are obviously less easy to make rapid gear changes with while the bike is requiring all your attention to control. They don't perhaps suit "all mountain" as well as they do "ambient scenic cross-country".Posted 8 years ago
Thanks for all the replies. I will sleep on it and make a decision in the morning. Not keen to "upgrade" to 9 speed as my chain and cassette are only 2 months old and I'd need a new front mech too.
"ambient scenic cross-country" probably about describes me, gnarly is starting to hurt too much now I am in my 40s 🙂
@sslowpace, they look nice. Very similar to the SJS cycles ones I think.
Is there anything to be gained by running them on the wrong side of the bars upside down I wonder, I think my brain could cope.
What I really want is for Campagnolo to do some MTB gears, oh wellPosted 8 years agosoulwoodSubscriber
Rocketdog, the secret 8th click for XT thumbies was rendered useless by the big S themselves. Why would they spend millions of yen developing a brand new 8 speed group and let folk use retro compatible stuff?. I tried to set up my XT thumbies with 8spd, all I got was a lot of frustration, it seems the spacing of the 8spd cassettes is just *slightly* out. Shame really as it was a nice idea.Posted 8 years ago
Re 7 and 8 speed, soulwood is correct, 7 speed was 5mm spacing and 8 speed 4.8mm. In practice if you set it up to be spot on in the middle of the cassette it might work but need more fiddling.
Thats good to hear DWH, can't wait to get them now! Don't suppose you have a pic of them fitted to keep me going? Ever tried them upside down and back to front?Posted 8 years ago
Just thought I'd try it this way for a bit
1-3rd shifts with a flick of the finger
4-5th requires a slight twist of the wrist and a push from the finger
6-8th is a push with the thumb
8-1st is 1 push with the thumb
it's better than it sounds
I read about some riders running thumbies like this in the 80's so thought I'd try it. I may try them above aswell to compare but this way I can keep my hands wrapped around the gripsPosted 8 years ago
Just in case anyone reads this and wonders about putting them under the bars…
Spent a bit of time last time setting them up on top instead and just took them for a spin for 1.5 hours. They are actually much better on top, which is after all where they are supposed to be 🙂
Shifting is very crisp and positive.
Posted 8 years ago
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