Swapping Chainset.

skooter Posts: 264
edited December 2018 in Workshop
I have a bike with a Shimno RS500 chainset and would like to replace it with a Shimano 105 chainset. Is this just a removal and replace job or do I have to get a different BB as well? its a 50/34 combo.



  • cq20
    cq20 Posts: 207
    I made the same change (because I wanted to change cranks length rather than being dissatisfied with the 500 chainset). It was a straight forward swap out using the existing BB. There are plenty of YouTube videos on it but it is very easy, assuming you have the necessary tools especially the (cheap) Shimano NDS crank tensioning thing.
  • lesfirth
    lesfirth Posts: 1,382
    As above. Straight swop .Could not be easier.
  • skooter
    skooter Posts: 264
    Cheers boys I will hunt for a 105 Chainset now.
  • lesfirth
    lesfirth Posts: 1,382
    The 500 series chainset might be a bit heavier but I think it looks better than a 105 5700/5800. I would not bother but it ain't my bike. :D
  • The 510 looks pretty much the same as the 5800 but has about 100g more mass. Much cheaper though.