...well, except here
OK, I'm not too sure about terminoligy here (although I've got Bicycling magazine's - Bicycle Maintenance and Repair manual in front of me.)
First off the problem:
When I stop pedaling, sometimes the freewheel doesn't coast. Instead, it tries to drive the pedals around like a fixed-single speed bike. I hear a crunching noise and the rear derailleur cage moves towards the pedals. It then gives a final crunch and I'm then able to coast again (OK, I could just stop coasting, but I'm lazy
Also when I come to a stop, moving the pedal upwards will sometimes cause the same problem, it's similar to what happens if you suddenly stop whilst in the middle of shifting a gear and then try to 'reverse pedal'. The chain goes all slack.
So the specs.
It's a 2002 Klien Quantum Pro. With Shimano Ultegra components.
The wheels are (F) Bontrager Race Lite 20 hole, alloy rim
(R) Bontrager Race Lite 24 hole, OSB alloy rim
Rear cassette is Shimano Ultegra 12-25, 9-speed
OK, I've tried to see what the problem was (and fix it), I removed/cleaned the chain (even though it was pretty clean and lubed)
I gave the rear derailleur a good clean and ensured that there was no crud around the jockeys.
I then tried moving the pedals and it was still happening. I then removed the rear wheel and examined the rear cogs.
It spun ok (the cassette). I then pushed it, as if the chain was applying pressure to it and then tried to move it backwards (like I was coasting) Aha! It was stuck, so I then moved it the other way (like pressure was being applied again) and then moved it back (coasting) and it spun ok.
So, it seems to be something to do with the rear hub (bontrager).
I looked at the manual I've got and it said spray in some degreaser and then apply oil. This I done. Now it rides slightly better but it still happens. I think I need a new freewheel/cassette.
Now this is where I'm confused, this manual seems to chop and change between talking about a freewheel (which I think is 'older tech.) and a cassette.
So I browse the web and cassettes seems to be the cogs themselves?!?
So then I looked up hub and it seems like I'd have to replace the whole of the hub in order to change the cassette thingy (nice techy term...) that contains the rachet mechanism. This doesn't sound right as I'd then have to rebuild the whole wheel.
OK, (Hmm, sorry, this is starting to be a bit long winded but I wanted to place as much information as possible.) So in brief terms:
1. I think I need to replace the rear cassette (possible rust inside?) that contains the coasting mechanism. What is this called? Just so I don't look an idiot at the LBS (or confuse them). And is it replaceable?
2. If it is replaceable (woo hoo!) What tools to I need to remove apply it. i.e. Take off the lockring etc.
3. OK, I could just take it to the LBS and ask them (nicely) to fix it, but I want to try it (and learn) myself.
Free (virtual) beers all round if anyone can help me.