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 to frames with asymmetrical Pressfit30A bottom bracket shells, e.g. Cannondale with a 46 mm press-fit depth and a width of 73 mm.

Pressfit30A, asymmetrical, bottom bracket shell:

Unlike standard Pressfit 30 bottom bracket shells, the BB30A shells are asymmetrical. The bottom bracket shell width is 73 mm and is narrower on the drive side. Consequently, standard Pressfit 30 bottom brackets do not fit, nor do BB30 road bike cranksets. The axles of BB30 road bike cranksets are too short for a 73 mm installation dimension.

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

The Shimano Hollowtech II crankset system features a solid 24 mm axle. The road bike cranks have an axle length of 110 mm and the MTB cranks 120 mm. This axle system is also used on FSA Megaexo cranks and Race Face X-type cranks. The respective bottom brackets are compatible with one another. The DH Saint and Zee cranks for 83 and 100 mm installation widths have longer axles and will only fit frames with correspondingly wider bottom bracket shells.

Wheels Threaded Outboard:

Unlike other press-fit bottom brackets, the Wheels Manufacturing outboard bearing cups are bolted together. This has the major advantage that the bottom bracket shell sits very securely and absolutely parallel within the frame. This means you can continue to use or salvage frames with slightly worn-out bottom bracket shells. This ensures a long service life for both the bottom bracket and the frame. The bottom bracket cups are made from high-strength aluminium.

Wheels Enduro ABEC3 ball bearings:

The Wheels Enduro ABEC3 ball bearings offer very high precision. The balls are twice as round as standard industrial bearings, with a roundness tolerance of 10 / 1,000,000. The ball material, 52100 high-carbon chromium alloy, is extremely robust and specially hardened. It is also polished to a high gloss.

Wheels Manufacturing Outboard bottom bracket technology:

• Suitable for Pressfit30A bottom bracket shells
• Press-fit diameter 46 mm, width 73 mm (asymmetrical)
• 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.
• Bottom bracket tool 44 mm with 16-tooth spline
• ABEC3 Enduro bearings
• Weight 158 grams

Wheels Outboard bottom bracket compatibility:

Compatible with Shimano Hollowtech II, FSA Megaexo and Race Face X Type cranksets with a solid 24 mm axle. MTB and road bike. The Hollowtech II bottom bracket tool, such as the TL-FC32 or TL-FC33, 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