Chainring compatibility

Eoinl Posts: 13
edited June 2016 in Workshop
So I did a bit or a rebuild of my dads bike at the weekend. New headset bearings, new hand built wheels that I put together for him, new bottom bracket, new chain, cassette, rim tape tubes and tyres.

When I test rode it, I realized that I also needed a new front inner chainring for him as his was worn. He runs a 10 speed Sram Force chainset with 50:34 chain rings. Here's the dilemma. It seems very easy to pick up an 11-speed 34 tooth inner ring but 10 speed seems harder to come by. Will this 11 speed be compatible with the 10 speed spider? The BCD is the same obviously.

Thanks in advance.


  • Monty Dog
    Monty Dog Posts: 20,614
    TBH, I doubt you'd notice - the 11 speed will be marginally skinnier
    Make mine an Italian, with Campagnolo on the side..
  • Eoinl
    Eoinl Posts: 13
    That's what I thought, good to get a second opinion, thanks.