Gears skipping after fitting new chain and cassette

[cc93]

 

Hoped that might be the case!

It's such a common injury that the (more reputable) Al frame makers usually fit replaceable hangers - much cheaper than a new frame!

[PhilO]

If it's not badly bent, it'll probably be straightenable anyway. Al isn't a magical material that'll only bend one way.  I straightened the hanger on my Giant MCM at least three times...

Give it a go before splashing out - there's nothing to lose, anyway. 

(It's worth getting a spare while you're at it, though)

[Nienke]

It's all sorted 

We went to the nearest evans where they produced a small plastic box full of assorted hangers. We rummaged for a bit and found the right hanger with no price tag on, so were only charged £2 (it'll have been the first and only time I get something from evans cheaply). The guy said repeatedly that we were very lucky that they had one at all. Put it on, sorted the gears out a bit, and the sirrus now runs like a dream with all the new shiny bits on. Not one skip all the way home and back this morning.

Thanks again for all the help.

[Polar Bear]

Excellent news 

[αdαmsκι]

We rummaged for a bit and found the right hanger with no price tag on, so were only charged £2 (it'll have been the first and only time I get something from evans cheaply).

Yeah, I think Evans screwed up charging us only £2 because various online stores (e.g., here, or here and here) suggest the hangers should be in the £10 - £15 range.  Oh well