Author Topic: Challenge Hurricane Chainrings  (Read 750 times)

Challenge Hurricane Chainrings
« on: August 28, 2017, 08:00:53 pm »
Does anybody know what stock chainring sizes Challenge fitted to the Hurricane?

Re: Challenge Hurricane Chainrings
« Reply #1 on: August 29, 2017, 12:06:01 am »
If a 100" gear is the old standard top gear.
Then working backward from a 20" wheel and an 11t sprocket, you need a 60t chainring.
So as a pure guess something in the range 56t-65t.
But probably edging toward the 65t for a 110" top.

Re: Challenge Hurricane Chainrings
« Reply #2 on: August 29, 2017, 06:35:08 am »
A 40-60 double was standard on various Challenge models.