i believe in fixies":18hhczqi said:
silverclaws":18hhczqi said:
Another bodge I am engaged with at the moment is trying to combine the innards of a XT thumbshifter with an older Deore thumbshifter after a maintenance job went horribly wrong and the synopsis of what happened seems to lead to the fact that the Deore shifter has had maintenance before, as some parts were either different, or just plain missing, which might go on to account for why the shifter was less than light action. The spindle through the centre sheared off.
If it's 7 speed Deore and 7 speed XT when I tried I discovered that the innards are the same, the difference between them was the sticker on the top cap and the mount, alloy on the XT and steel on the Deore. Easy enough to mix and match the bits. Good luck.
Nope, I got my xt shifter bits out of the box that I had chucked them in when I gave up last time and did at first reassemble the shifter as per a silver topped Deore front thumby, but found I had three bits left over, which puzzled me and I wondered if they were indeed part of the shifter and not some stray bits that had been picked up from elsewhere.
The three left overs consisted of what looked like a steel washer, a tiny ball race set in plastic, and a multi lobed washer, so apart the shifter came again to see if the three parts fitted on the centre spindle, which they did perfectly. Also the assembly of the lower part of the shifter had to be done from the bottom due to the increased height of the washer and bearing underneath the indented index plate and spring locking support. The only bit I left out was what I originally thought was the bearing ring, the little thin brass washer, as I could see no use for it in there.
The top part of the shifter, the indent plate, balls and leaf spring assembly went on from the top, just like the Deore shifter. The indexed nut and washer fitted and the result is a far sweeter shift, sort of a solid feel, with a definite click in the index positions, where the Deore style was kind of mushy.
So, I can surmise there are more differences between the XT shifter and other variants of the same thing. So far, it is not just the top decal plate, mount bracket and bottom security fixing* that are different, but the innards are different too, instead of the brass shim bearing, the xt shifter has a ball and race assembly to move on.
*I believe XT was designed so that all adjustments could be made with the minimum of tools, a 5mm allen wrench being the required tool for the majority of adjustments to be made.
( for security, all my 5mm allen bolts on the XT groupo I have will be replaced with centre pin tamper resisting fixings)
Tanasi frame too I seem to remember.
