Big Steel External Bottom Bracket Bearing Kit with Silicone Seals (Monocrome)

Availability: Built to order

SKU:KRCS-BIGS-MC

Application: Shimano HT2 & Raceface X-Type Bottom Brackets
ID: 24 mm, OD: 37 mm, W: 7 mm

Available with Bearing Press Service & CNC Storm Drains

$0.00

2 x MR2437-2RS Steel Caged Bearing (Monocrome)   +$30.00

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$0.00

Description

Details

Big Steel bearings to fit Shimano HT2 & Raceface X-Type bottom brackets.

The bearings in this kit are bigger than stock, replacing the factory plastic sleeve to support the axle directly on the bearing.  Shields are included to protect the bearings from direct contaminant entry.

Silicone Spacer Shield Size: The shields are available in two different sizes.  Bottom bracket cups from Shimano require either 37 mm or 41 mm diameter shields.  Raceface bottom bracket cups require 41 mm diameter shields.  Please select the size you require above.

Important: FSA MegaExo cranksets have a slightly larger axle that means they won't fit through these Big Steel bearings.  They will however fit with the 6805 bearings and plastic sleeves as there is enough give to allow the larger axle to be pushed through.

Special 6 Months Guarantee:   All MonocromeTM bearings carry a special guarantee with a 6 month no questions asked replacement.

Additional Information
Bearing Press Service:

These bearing kits are available with or without Shockcraft's bearing press service.  By having us press the bearings into your existing BB cups, remove the risk of bearing damage during installation.

If you'd like us to press the bearings into your bottom bracket for you, simply also purchase the Bottom Bracket Bearing Press Service.  You will receive an order confirmation email with details on where to send your bottom bracket for its service.  Turn around time is 2 to 3 days.

CNC Storm Drains:

For those riding in wet conditions we can CNC water drains into your bottom bracket cups during bearing replacement.  These water drains allow water to escape from the cup before it can corrode or enter the bearing.  The modification is invisible once the bottom bracket cups are assembled.

BB Cup with CNC Storm Drains from Shockcraft
Bottom Bracket Cup with CNC Storm Drains

If you'd like us to machine CNC Storm Drains in your bottom bracket, simply also purchase the CNC Storm Drains service.  You will receive an order confirmation email with details on where to send your bottom bracket for its service.  Turn around time is 2 to 3 days.