[Yak] Greenspeed Scorcher on the tikit

[alex wetmore]

They fit!  We discussed this a couple of months ago, but no one had
tried it.  They measure about 37mm wide on the stock rims (I expect
that they'll expand to 38mm once they've been used a bit).  I don't
think anything else larger would fit with the stock fenders.  For
comparison the stock tires measure 32mm wide (even though they are
labelled 37mm wide).

The sidewalls feel much more flexible than the Marathon.  I haven't
ridden with them yet, but will report back or on my blog once I have.
I expect them to be a nice improvement to the bike.

alex