Single speed mountain bike crank. Travel further with pure cycles combining speed style and affordability the single speed pure fix urban fixie road bike from pure cycles is ideal for those getting back into biking after a few years away or who just want to get a feel for riding fixed. A lot of negative reviews but i had this thing put on professionally and it lasted four years straight of heavy riding. Modern multi speed bikes are marvels of technology and allow a cyclist to select the gear ratio that will. I used to do sprints up the hills in central park every day almost passing everybody and their 3000 dollar bikes on my fixie and this thing hasnt given me a single problem.
More and more cyclists are discovering the joys of simple one speed bicycles. Once youre hooked though its time to look for a frame that is built for the purpose.