Changing front cassette...

garrynolan

... from Standard Shimano 105 to a Compact (105 or similar). How easy is this and can you recommend a compatible cassette other than Shimano that won't break the bank - it's a 2009 BeOne Storm so isn't BB30. Thanks in advance. ps. How much am I looking at?

Mike03776

Do you mean your crankset? One option is to remove the inner chainring and then adjust your limiter srcews on your front deraileur so it's not possible to shift down to that chain ring. However to do it properly would require and new shift, front mech and crankset.

sungod

what bb? is it hollowtech ii or the older octalink - 105 9-speed is octalink, 10-speed with be htii

what budget?

k-dog

I have no idea what the first reply is saying but it's not too hard and will make a big difference.

The only way to do it is to change your whole chainset. You can't just change the chainrings because the spider of your regular cranks won't fit smaller chainrings.

The easiest way is to get another Shimano chainset - pretty sure you just have a regular Shimano outboard bearing BB. If you change the BB too it opens up a few options but you'll need some more tools.

You can pay from £50-120ish for seomthing that will work - depends if you need 9 or 10 speed and you can choose 105 or Tiagra (similar just a bit heavier).

Other than that you should just need to take a few links out of your chain and drop the front derailleur a bit.

garrynolan

k-dog wrote:

I have no idea what the first reply is saying but it's not too hard and will make a big difference.

The only way to do it is to change your whole chainset. You can't just change the chainrings because the spider of your regular cranks won't fit smaller chainrings.

The easiest way is to get another Shimano chainset - pretty sure you just have a regular Shimano outboard bearing BB. If you change the BB too it opens up a few options but you'll need some more tools.

You can pay from £50-120ish for seomthing that will work - depends if you need 9 or 10 speed and you can choose 105 or Tiagra (similar just a bit heavier).

Other than that you should just need to take a few links out of your chain and drop the front derailleur a bit.

Agreed on your first point... anyway, mine is 10-speed and I've been told that other brands will fit this (possibly FSA 50-34t). Don't want a triple so compact double seems the way to go for a good compromise. No need to worry about tools - a professional will be used as I'd like the bike to work again. Any views on FSA or other brands? Ta. G.