New to biking and need some part advice.

Endrance · March 2015

Hi, im in need of replacing my rear derailer and need some help.

here is a link to my bike and components http://thecyclehub.net/review-specialized-allez-2013/

i was looking at this derailer and need to know if it would fit.

http://www.evanscycles.com/products/shi ... 7#features

i also could do with a new chainset or just some chainrings, as cheap as possible would be great.

Thanks.

markhewitt1978 · March 2015

Yes it should work. Claris is the replacement for 2300 and are both 8 speed. Not that rear mechs have a 'speed' as such.

Endrance · March 2015

Thank you for the fast reply

simon_masterson · March 2015

markhewitt1978 wrote:

Not that rear mechs have a 'speed' as such.

They do. Do you not know how indexing works? Different mechs have different pull ratios, according to the sprocket pitch of the cassette/freewheel. There is some crossover between speeds, and friction shifters should work with anything, but to imply that you can buy any derailleur and it will work is poor advice indeed.

Endrance · March 2015

Simon Masterson wrote:

markhewitt1978 wrote:

Not that rear mechs have a 'speed' as such.

They do. Do you not know how indexing works? Different mechs have different pull ratios, according to the sprocket pitch of the cassette/freewheel. There is some crossover between speeds, and friction shifters should work with anything, but to imply that you can buy any derailleur and it will work is poor advice indeed.

Is he correct in saying this one will fit though?

simon_masterson · March 2015

He is. Reading back over that post, it comes over much harsher than I had intended. What you need to know is that you need a Shimano 8 speed rear mech on a Shimano 8 speed transmission.

Have a read of this:

http://www.highpath.net/highpath/cycles/info/rear.html

Endrance · March 2015

Thanks guys and thanks you for the info will have a read.

New to biking and need some part advice.

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