Igor's Country Rambler - 650b Pass Hunter

by Igor

Let me preface this article with a few words of caution. Obviously, using a narrower rim will yield narrower tires, and vice-versa. The front has lots of room, the rear chainstays are pretty tight. Tight enough that I can't recommend anyone do this specific conversion. I could have dimpled the chainstays for extra clearance, but I felt it wasn't necessary for now. Additionally, I wanted to use as many regular hand tools as possible. Narrower tires like the Pari-Motos or other ~42mm tires would make fender installation easier. That said, enjoy!

Ever since the Polyvalent prototypes came in, a 650b itch has developed. I tried calamine lotion, anti-histamines, wearing gloves, and even bathing in tomato juice - nothing worked. So instead, I embraced it. Fueled by inspiration and Clint's OutoftheBasement Brew® coffee, I decided to 650b my Pass Hunter Disc.

Right away, I noticed that the chainstays were potentially going to be an issue. I mounted WTB Horizon 47mm tires on 28mm wide rims and let them age for a few days. They seemed to have hit a stasis of 46.8mm after a few days. The chainstay clearance is tight, but manageable. The overall diameter of this setup is roughly the same as the Fairweather 700x28s I had previously mounted, but with extra confidence to roll over the grates on the bridges we have around here going into and out of town.

I could have called it a day, posted some photos on IG, and been showered in virtual hearts. Instead, the bike screamed for fenders - it is a VO frame, after all. I managed to massage, crimp, and adjust our 700x63mm Fluted Fenders to fit the curvature of the wheel. In the following photos, you can see how things line up and where they needed "encouragement".

Specifically on these fenders, the section that mounts to the chainstay bridge has a sort of "tongue" to allow it to fit into more bikes. Additionally, you'll notice the fender is crimped behind the front derailleur. It isn't a dent. That's how it comes stock to allow a derailleur to travel into the smaller ring without interference.

Finishing touches were put on - a prototype Randonneur Front Rack with the fender mounted. This combination was a cinch to install and makes a really simple and strong connection.

Here I come, #basketlyfe! 

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