Does 2.5mm make a difference?

slow down

New Member
Location
Walsall
I'm thinking about switching my best bike to a compact, but I have a grey Centaur groupset and the only grey Centaur compact chainset I can find has 175mm cranks, where I normally ride 172.5mm. Does the 2.5mm really make any difference, or will I not notice?
Or does anyone know where I could get a 172.5mm grey Centaur compact chainset from?
 
I've had the same thing on some of the bikes I've had in the past and I never noticed the difference (if that helps), though I could have adjusted the seat post and forgotten.
 

Steve Austin

The Marmalade Kid
Location
Mlehworld
It can depend on how tall you are, allegedly.

i've ridden 170 through to 180 and all have been fine. i did find spinning a 170 a tad tiring though.
IIRC there is some site that has loads of measurements to see if certain size cranks will be ok for leg length.
 
OP
S

slow down

New Member
Location
Walsall
Cheers - I may give it a try. I can get the 175 chainset for £40 (just need to remember where I saw it :thumbsup:) so not that much of a gamble I guess.
 
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