Gears skipping

[sackville d]

Where do I get one of those from as at the moment I use a plastic thing by Park tools that also can be used to recover a fallen chain (came free with a MTB mag as I remember) and are they very expensive? Oh and thanks Smokeysmoo I had a feeling that I could not do something so simple as that.

Edit. Found one of the chain measureing tools at Evans and is now ordered.

I love that tutorial,every cyclist should watch that
You realise that its just a load of springs under tension,some stoppers and wires.
You could also have used a steel ruler to measure between the pins for stretch.

 

[ianrauk]

I love that tutorial,every cyclist should watch that
You realise that its just a load of springs under tension,some stoppers and wires.
You could also have used a steel ruler to measure between the pins for stretch.

It's probably the most recommended and most viewed tutorials on the forum.

 

[Joey Shabadoo]

I've come to the conclusion that I'm a blithering idiot that shouldn't be allowed to play with man tools or credit cards.

Having decided that I needed to replace the chain and cassette I had the choice of lbs or do it myself. Figuring I'm not entirely cack-handed and I should learn how to do these things, I elected to do it myself. So off I goes to youtube and studies videos on removing cassettes. Armed with a little bit of knowledge, I proceeded to Wiggle and ordered a lockring removal nut, a chain whip and a KMC chain (cos everyone here raves about them). Counting the rings on the cassette, I knew I needed an 8-speed cassette. Finding the Shimano and SRAM cassettes, I had a choice of 3. One was a road cassette but I figured my bike's a Tricross so it probably needs more teeth as it's designed for going up muddy hills. Being the type that hates hills, I of course reasoned More Teeth = More Good and ordered an 11-34 cassette.

It arrived this morning, all shiny and gleaming. Even though I'm at death's door with man-flu, I decided to get stuck in. "Ooh" sez I when I saw the massive cog on the cassette, "I'm going to fly up the hills no bother".

Those of you with slightly more technical knowledge than an ever so dim cat know what's coming, don't you?

Cassette fitted, chain fitted I cycled through the gears. It purred through them until I tried to engage the biggest sprocket on the chainring and the whole thing jammed. The big cog on the cassette is far too big for the derailleur .

Dammit!!!

 

[Tim Hall]

So add a link or two, assuming you had to shorten the new one to get it on in the first place.

 

[Joey Shabadoo]

I reckon if I added links the derailleur would snag itself when on the small cogs