Boardman Hybrid Pro

[fixedfixer]

Thinking of getting one of these http://www.boardmanbikes.com/hybrid/hybrid_pro.html but want to change the chainset to a 42/27 like this one http://www.shinybikes.com/fsa-comet-386-bb30-sram-10spd-black-42-27-175mm-312-0322.html
The 'new' chainset has the same BB and is the same manufacturer. Would this be a straight swap or does anyone know if it will cause issues? Chain would need a few links removed, but would the chainline and shifter work?

 

[jonathanw]

Not a major problem if you can adjust the front mech slightly

It would be easier to change the cassette for an 11-28 on the back end and would achieve almost the same ratios. are you after a cyclocross type setup for racing? or do you just want the hills to be slightly more bearable?

 

[ultraviolet]

as that crank-set is for a MTB you could find yourself running out of gears very quickly; the CB Hybrid range are very quick and pretty much flat-bar racers.

i would personally stick a MTB block on the back and keep the original cranks, or go with what Jon said

 

[fixedfixer]

Going to be more of a straight bar fast tourer type of bike and needs low gears for loaded hill climbs. Boardman website does not say what rear block is fitted - so will check that out.

 

[jonathanw]

Ok if it is for hills then I'd stick with the compact double on the front and change the cassette to an 11-28. If you really wasnt more then again I would consider an 11-34, but you'll need a long cage "MTB-type" rear derailleur and a longer chain. It'll be easier to get up the hills than he new chainset you describe.

 

[fixedfixer]

Thanks for your help. Time to check out Sheldon Gear Inches Brown and work out the possibilities.

 

[fixedfixer]

The change has been made. Now have the 42/27 at the front and a larger cassette fitted. That just leaves me with a nearly new 50/34 to sell. Will post in For Sale when I've sorted pictures.

 

[BigTam]

Is the stock cassette not a Shimano cs 5700 12-27T ?