Single chainring on a road bike? Ah, go on then! – SRAM Force 1x Chainring Maintenance Product Reviews by MuddyGoose - October 8, 20170 It has been several years since I reconfigured my mountain bike to run a single chainring and I haven't looked back since. Even running an old 9 speed rear setup alongside the single front, hasn't caused me any issues. So with the advent of SRAM proclaiming the greatness of 1x and now offering single ring conversion options for road bikes it's been something I've been considering for most of this year. September is my birthday month and so having received some birthday money I went ahead and bought myself a SRAM Force 42T X-sync chainring to fit to my existing crank. 1300