Deerfield Rig

Deerfield is Saturday! A long hilly dirt road ride requires pretty big changes from the road rides I'm familiar with. I'm starting with the Independent Fabrication I've been using as my summer/long-distance bike for years now. It's the Club Racer model, which is designed to accept full fenders, and it does that by using "long reach" brakes, and having good clearance in the frame and fork.

The seatstay gap is 35mm, the limit on tire size. I'm a big fan of Vittoria tires, so for the dirt roads I picked their cyclocross tire, nominally 32mm wide but which measures 30.5mm on my rims. This size perfectly fits, with a little gap for dirt. (This would not work well in mud, and cyclocross bikes have much better clearances for this, but it should suffice here.)

Low gears are important for the hills, including the power loss of loose gravel slipping under the wheels. I favor low gears anyway, to keep my cadence high, so I setup my lowest chainring set, 26 / 42/ 52. But I swapped my 12-27 road cassette for a mountain bike 11-34 cassette to get a really low climbing gear. To do this I had to swap the rear derailleur to a MTB version, including one of the "brifterizer" hacks I build to connect my 10 speed Campy shifters to 9 speed shimano cassettes. The shifting is noisier, benefitting from more nudging than I normally need, but the range is great. (In test rides I found I need to remain seated on a steep loose climb or the wheel will slip - so I'm missing a skill and need extra-low gears to compensate.)

No rear derailleur I know of will handle the full range of gearing described above, so I locked out the large chainring. (The derailleur's bottom pulley moves back and forth as one shifts to take up the slack in the chain for the selected gears. I have a "long-cage" derailleur, able to handle the widest range, but even it has a limit.)

Water is another challenge. While there will be water stops, the organizers are recommending hydropacks so the riders can carry enough water between. I can't imagine wearing that hot thing for a long ride, so my plan is to carry 4 bottles, with 3 on the frame and one in my jersey.

This ride will rely on cue sheets more than any other ride I've ridden. So I added a handlebar bag as a cue sheet holder, but it's a classic touring accessory and I may find I like it.