Machined from solid bronze, Sputnik heat sinks are available in purged and nonpurged versions and significantly reduce distortion and burn-thru caused by the joining process. Less distortion reduces wear on cutting tools and the time needed to tap, ream and face a frame. Head tube, BB, and seat tube Heat sinks are built to order and designed to fit your particular tube dimensions.
$75 to $175
BB30 and PF30 heat sinks are now available.
Breezer dropout purge fitting. Two fittings, plus spacer included.