Wheels Manufacturing Outboard Bottom Bracket

The outboard bottom brackets from Wheels Manufacturing allow MTB and road cranks with a 24 mm axle to be fitted into frames with BBRIGHT bottom bracket shells measuring 79 mm in width and with a 46 mm press-fit depth.

Unlike other press-fit bottom brackets, the Wheels Manufacturing cup sets are bolted together. This has the major advantage that the bottom bracket shell sits very securely and absolutely parallel within the frame. This ensures a long service life for the bottom bracket. The bottom bracket cups are made from high-strength aluminium. To ensure optimum durability, Wheels MFG manufactures its own bottom bracket cups for each bottom bracket shell, with the correct offset, even when the press-fit depth is the same as for 386EVO, Pressfit 30 and BBright bottom brackets. This ensures that the bearings are positioned as far out as possible and the crank axle is supported as effectively as possible. Other manufacturers use spacers for the different installation widths, which is not quite as ideal.

Wheels Enduro Angular Contact Ball Bearings:

The Wheels Enduro ABEC5 angular contact ball bearings are specially designed for use in hubs and bottom brackets. Whereas in standard radial bearings only 3 or 4 balls are loaded simultaneously, in angular contact ball bearings all balls are loaded evenly. This is why this type of bearing is also known as a full-contact bearing. This distributes the applied force across the entire bearing, reducing friction and wear. The balls in these bearings are manufactured with extreme precision, with a tolerance of just 10/1,000,000 – twice as precise as standard industrial bearings.

Shimano Hollowtech II crank axle 24 mm / Road - MTB 68-73 mm:

The Shimano Hollowtech II crankset system features a solid 24 mm axle. The road bike cranksets have an axle length of 110 mm, whilst the MTB cranksets for 73 and 68 mm bottom bracket shells have an axle length of 120 mm. This axle system is also used in FSA Megaexo cranksets and Race Face X-type cranksets. The respective bottom brackets are compatible with one another.

BBright bottom bracket shells:

BBright bottom bracket shells have a width of 79 mm and a press-fit dimension for the bottom bracket of 46 mm. These bottom brackets are press-fitted. With Wheels Threaded or Cane Creek bottom brackets, the bearing cups are screwed together and thus pulled into the bottom bracket shell. This is the significantly more durable assembly method, as the bearings are additionally secured by the bearing cups.

Wheels Manufacturing Outboard bottom bracket technology:

• Suitable for BB Right bottom bracket shells
• Press-fit dimension 46 mm for bottom bracket shell width 79 mm
• For 24 mm crank axles: Shimano Hollowtech II, FSA Megaexo, Race Face X-Type
• Applications: Road, Cross Country, All Mountain, Enduro
• 7075 aluminium bearing cups, forged and CNC-machined.
• ABEC5 angular contact Enduro bearings
• Weight 98 grams

Wheels Outboard bottom bracket compatibility:

Compatible with Shimano Hollowtech II, FSA Megaexo and Race Face X Type cranksets with a through-axle of 24 mm. MTB and road bike. The bottom bracket tool, item no. Wrench-BB48-44, is required for installation.

Herstellerinformation: WHEELS MANUFACTURING, 475 Arthur Ave. #1, 80027 Louisville, Colorado, United States, https://wheelsmfg.com | EU contact: Tomeikerweg 31, 6161RB Geleen, Netherlands, https://tehava.com