Friday, February 25, 2011
IRD Defiant Cranks (Triples/Doubles) In The House
Interloc Racing Design (IRD) is company that started out in the mid-80's doing the mountain bike components, however recently they are better known for their 11-34 road cassettes, quality freewheels and other knick-knacks that larger manufacturers don't care to make anymore.
When we visited American Cyclery back in November, they had a test sample of one of these Defiant "Touring Triples" on a black Double Cross frame. It definitely caught our eye. Thought it was their track crank at first. We now have a few of these ourselves to sell on the Soma Shop. The arms are cold forged before the fluting details are added. The retro design does come with some old school eccentricities: These cranks need a wider BB than usual. For most bikes, it would be 115mm spindles for the doubles (53-39t or 50-36t) and 122mm for the triple. Not a huge issue. IRD makes those, too.
The chainrings are CNC'd, ramped and pinned for modern 9/10-speed shifting and buff-polished to match the crank arms.