Carbon Fat Bike (and rims) — Fat bikes used to be obese not only in tire width but weight as well. Borealis Bikes is one brand trying to change that, and its Carbondale rim, debuted last week, are a case study: The 85mm wide rims, made of carbon fiber, weigh 590 grams each — lighter than many mountain bike wheels on the market.
Add the company’s Yampa carbon frame (weight = 2.8 pounds) and you can build a fatty complete that weighs less than the high-end XC mountain bike in your garage.
See the scale above as confirmation. We snagged this image at the Dirt Demo event during Interbike and had to look twice as “21 pounds, 10 ounces” flashed on the screen. Fat and light! Carbondale rims, $1,599 (per pair); Yampa frame, $2,249
‘Best of Interbike’ products continued on next page. . .
