The Friday Cyclotouriste

a geo-photoblog chronicling my "excursions velo"

Gear Gallery……650B x 38mm tires

with 2 comments


The Fabled Mitsuboshi Trimline

Three millimeters seems insignificant, but to the growing number of 650B wheeled bicycle riding nerds like myself, 3mm is a big deal.

The Quest for a 38mm tire. This is considered the sweet spot for optimizing the handling of many French-style, bicycle frames (designed for carrying stacks of newspapers, bottles of wine, food, camping gear, or what have you, on a front rack, in panniers, or in a handlebar bag).
Yet there are very few 650B x 38mm tire choices. The Col de la Vie, which I have on my Ebisu, is marketed as being 38mm wide, but it’s really only about 35mm.

There’s also the Hetre, by Grand Bois, a new and beloved tire which is a full 42mm wide. Unfortunately, when properly fendered (with at least 8-10mm of clearance), not many frames can accommodate this width.

The Mitsubishi Trimlines pictured above once filled the hallowed 38mm niche, but they have been discontinued¬†(I’ve been trying to locate a pair for 4 years). A replacement for the Trimline has been the Holy Grail of the 650B biking community for a number of years.

Finally, a replacement (or two). It seems there will be not just one, but perhaps two true 38mm tires to fill this void.

First, the Pari-Moto; you can place your orders now. Second, a new and as yet unnamed, Grand Bois model (expected to be a true 38mm wide) rumored to be coming in the first part of 2010.

Three cheers for more wide tire choices!

P.S. Searching for a photo of the Col de la Vie I came across a similar post at velo-flaneur, which reported this news months ago. This is a great blog; check it out!

Written by fridaycyclotouriste

December 13th, 2009 at 2:19 am


Tagged with

2 Responses to 'Gear Gallery……650B x 38mm tires'

Subscribe to comments with RSS or TrackBack to 'Gear Gallery……650B x 38mm tires'.

  1. Did you ever get the pari-motos? if so, how do they fit with your ebisu? do you like the tires?


    8 Aug 10 at 4:57 pm

  2. richard/ my budget doesn’t permit it just yet. i’m saving up. the col de la vie’s are really long lasting and i can’t justify the cost. but initial reports are promising. i can’t wait to see for myself if the pari-motos live up to all the buzz.

Leave a Reply