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1325 Ross St
Petaluma, CA, 94954







In 1992 we introduced the industries first suspension specific mountain bike hub, the Tracker.  As we fast forward into today's marketplace, one finds that the designs and products we currently create remain consistent with our roots.  We engineer our mountain hubs to effortlessly manage the demanding nature of off-road riding.   The hubset is ideal for those preferring  rim brakes to disc brakes.  Equip a mountain bike, touring or road bike with the MI5 and benefit from the steel rear hub axle system, the Abec 5 Enduro sealed cartridge bearings, and in the rear the three tool steel pawls, and the titanium 11 speed freehub body which also accommodates 9/10 speed cassettes. Built to handle the demands of off road riding and comes stock for 135mm frames,or, upon request, it can be configured as 130mm and used on a road or touring frame.   


MI5 Front

Shell: 6061 aluminum

Axle: 17mm o.d. aluminum

  • 9mm QR skewer

  • 15X100

Bearings: two:  6902-2rs

O.L.D.: 100mm

Weight: 122 grams

Finish: polished silver, black, blue, red, gold, pink, or purple anodized

Spoke Hole Drilling: 28, 32, 36, 40

US MSRP Silver: $137.50       Black: $144.50 

                 All Other colors: $157.50

MI5 Rear

Shell: 6061 aluminum

Axle: 15mm cro-mo

  • 10MM QR

  • 12X142

Freehub body: 6al4v Titanium 11 speed

 9/10 speed compatible when used with included spacer

  • Shimano

  •  Campy



  • Shimano: three: 6902-2rs, one: 3802W (or two 6802)

  • Campy and XD:  two: 6902-2rs, two: 3802W  (or four 6802)

O.L.D.: 130mm/135mm

Weight: 265 grams

Finish: polished silver, black, red, blue, gold, pink,  or purple anodized

Spoke Hole Drilling: 28, 32, 36, 40

US MSRP Silver: $323       Black: $330

                     All Other colors: $343

freehub bodys

Wheel Building Specs

hub instructions