Wheels Manufacturing Outboard Bottom Bracket

Wheels Manufacturing’s Outboard bottom brackets allow Sram MTB and road cranksets with a 24–22 mm GXP axle to be fitted into frames with PressFit30 bottom bracket shells featuring a 46 mm press-fit depth and widths of 68 mm and 73 mm.

SRAM cranks with the GXP axle system have a narrower axle diameter on the non-drive side than Shimano Hollowtech II cranks. Therefore, these bottom brackets are only compatible with SRAM GXP cranks

Unlike other press-fit bottom brackets, the Wheels Manufacturing outboard 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.

Wheels Zero Ceramic Angular Contact Ball Bearings:

The Zero Ceramic Enduro bearings feature high-end Type 3 ceramic balls with stainless steel bearing cups. These ceramic balls are the roundest available for civilian use. The bearing cups are made from pure silicon nitride material with extremely high density and a uniform surface. They also weigh 60 per cent less and are seven times harder than steel balls. Angular contact ball bearings have raceways in the inner and outer rings that are offset relative to the bearing axis. They are designed for bearings that must withstand combined loads, i.e. simultaneous radial and axial loads.

SRAM GXP crank axle:

The Sram GXP crankset system with different axle diameters. The outer diameter of the axle on the drive side is 24 mm and 22 mm on the left side. GXP-compatible bottom brackets are required for this.

Pressfit 30 / 68–73 bottom bracket shells:

Pressfit 30 bottom bracket shells have a width of 73 to 68 mm and a press-fit dimension for the bottom bracket of 46 mm. These bottom brackets are pressed into place. With Wheels or Cane Creek bottom brackets, the bottom bracket 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 bottom bracket cups.

Wheels Manufacturing bottom bracket technology:

• Suitable for Pressfit 30 bottom bracket shells
• Press-fit diameter 46 mm Bottom bracket shell width 68/73 mm
• For 24–22 mm crank axles: Sram GXP cranks only
• Applications: Road, Cross Country, All Mountain, Enduro
• 7075 aluminium bearing cups, forged and CNC-machined.
• ABEC5 Zero Ceramic Enduro bearings
• Weight 125 grams

Wheels Outboard bottom bracket compatibility:

Compatible with SRAM GXP cranksets with a 24 mm axle, reduced to 22 mm on the non-drive side; MTB and road bike. A Hollowtech II/GXP-compatible bottom bracket tool is required for installation, such as the TL-FC32 or TL-FC33

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