Saturday, September 8, 2012

Frankenbike 50 (part 1)

Frankenbike 50 is a bike race/ride put on by the Capcity Cross guys. It's a ride that traverses nearly 50 miles of gravel, paved roads and single tracks in the Scioto Trail State Park gaining over 4000 ft of climbing along the way. It's a ride for roadies, crosser, mountain bikers and anyone in between. You can bring any bike to this event.

To ride this, however, the first question would be what kind of bike to ride? The course will about 50% gravel, 30% paved surface, and 20% of single track which includes some tricky downhill sections. The obvious choice would be a cyclocross. It has a road bike frame for efficient pedaling and quick steering, the capability of fitting slightly wider and nobbier cross tires for off road traction, and a geometry that is little more upright for comfort.

However, as I discovered on a 35 mile single track ride through the Manistee National Forest, it is not the most comfortable bike over trough surface for a prolonged time. The geometry is comfortable enough for road surface or smooth trails, but over roots and rocks, it requires a lot more upper body strength and attention. It gets tiring.

Therefore, in keeping with the name of the ride, I decided to make my HT mountain bike into a rigid 96er with skinny cross tires. A Frankenbike it shall be. My hope is that the rigid platform will provide enough pedaling efficiency for climbing, the longer fork with elevated front end will provide a more relaxed riding position, and the basic MTB platform will be able to handle the single track sections better than a cyclocross.

The HT is old school,  circa 1999 Weyless Ultra with Easton Ultralite tubings.

Shimano LX, XT 9 speed drive train provides transmission. 

Avid Single Digit V-brakes feel almost as good as my buddy's Hayes hydraulic.  


 A Origin 8 combo 26/29er fork is installed. 

A Shimano T565 touring front wheel is wrapped with Continental Twister 32mm tire. 

The rear Mavic Crossland is mated a Schwalbe CX pro 26x1.35. 

Basic aluminum cockpit with riser bar completes the deal.

The completed project weighed in about 22 lbs with pedals. Not bad for a 13 year old cheap bike. I am going to bring the MTB tires with me just in case that the course looks trickier than I think. Otherwise, I hope my Frankenbike can take on the Frankenbike 50. We will see. Ride report to follow.

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