RB-021’s are 26.0mm clamp.
And I thought 49x17 was high…
The only time I really push it is down on the Albert Park street track. I have no real need for brakes down there as the only set of lights is redundant when travelling in an anti-clockwise direction.
Yup.
This limited black version also has a standard track-type 25.4mm clamp size, whereas the silver version has a road-spec 26.0mm clamp size.
So there are indeed RB-021s with 25.4 clamp. To bring back an oldie: Just sayin’. 