IRD just released these classic-inspired Defiant track cranks. They are 6061-T6 aluminum in a 144BCD, they tell us they cold forged them for additional durability and strength. The fluting is gorgeous and they will definitely add class to any build. We got 'em on the
store.
6 comments:
Gorgeous!
Looks very nice. Is the chainring 1/8" or 3/32"?
1/8"
Is the known design flaw where the sharp edge between the arm and the spider creates a stress riser that results in a hairline crack corrected on these?
I would check with IRD, maybe shoot them an email and talk to them about the design process.
What is the tread/q factor and with what length spindle? Any chance of a matching chainring cover in this bcd for use on city bikes. Has IRD said anything about a 110 version?
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