article that explains studies showing that UV light can make you faster and stronger. Here is the direct link. There is also an official VO twitter.
We are starting work on a Mark 3 version of the Grand Cru Canti brakes. They will have an lengthened lever arm for more stopping power. Additionally, there is enough up-and-down pad adjustment to convert 26" mountain and touring bikes to 650b. With them you could use 650b wheels on your LHT or classic Stump Jumper and have access to all those wide soft tires, like the great Pari-Motos, with minimal rolling resistance.
The Mark 3 brakes were not designed with conversions in mind; we simply discovered an added benefit to the longer adjusting slots. I expect that taking an old mountain bike and having the fork re-raked might make an acceptable low-trail 650b touring bike. Re-raking is fast and easy and can be done without damaging the paint. Anyone have more experience with this? BTW, these brakes will be an additional model, not a replacement for the Mark 2.
Speaking of touring bikes, the 700c Polyvalent will officially be in the prototype stage next week. That means that we will be waiting for prototypes instead of just second-guessing all the details we put on paper (actually CAD). The main changes from the 650b Polyvalent are, vertical dropouts, slightly shorter top tube, longer chain stays, 3 sets of bottle cage bosses, and more rack mounts. Now we need to pick a color. Blue-gray? Dark gray? Custard?
We often get asked if the Porteur rack will accept panniers. Yes; the rack works perfectly with most panniers. I like to hook panniers on the inner rails, as in the photo. They can also be attached to the outer rail, but then they lean outward which looks odd to me.