Philip,
I've gotten at least four sets of 7- and 8-speed Shimano Rapid Fire
shifters working again using Kent Peterson's advice at
http://kentsbike.blogspot.com/2012/03/fixing-gummy-indexed-shifters.html
The stuff he recommends, PB B'laster Penetrating Catalyst, is
available at many hardware and auto parts stores, and it's great. I
find it works best to take the outer covers off the shifters, so that
I can see the ratchets and get the lube on the proper surfaces, but
I've never had to do any disassembly beyond that.
Kent's blog is great, BTW, with a nice mix of ride reports, gear
info, and general musings. He's a very good writer.
Mitchell Gass
At 01:41 PM 12/9/2012, Philip Williamson wrote:
I'm fixing up my friend's bike, and her trigger shifters are toast.
She can use 2 out of 3 rings in the front, and 1 out of 7 cogs in
the back. The shifters appear molded in with the brake levers, which
is a drag, since the levers work fine. It's an otherwise serviceable
Trek 820 with fat slicks, and it would be a great bike when it goes
again. I don't think she actually needs more than one gear, but I'm
not going to make that decision for her.
I'm looking for a set of usable Shimano 7 speed shifters, or cheap
thumb shifters and separate levers. If anyone knows how to rebuild
trigger shifters, I'm open to that, as well.
Random goodies I have to trade from the parts bin: fat 700c tires, a
single new 650b Marathon Supreme, some newish XL Riv tee shirts
(RONA, Freddy Hoffman). Two styles of MTB bar ends. Front
derailleurs. A single Tektro road lever (fat hood style). A single
speed tensioner. Small bills. Stuff like that.
Thanks in advance,
Philip
www.biketinker.com
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