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Bottom Brackets

$9.99
Dimension American bottom bracket for one-piece cranks. - Include cups, bearings and cones - 24 tpi
$9.99
- One-piece bottom bracket cup set - Bearings included - Fits smaller american juvenile/youth sized BB - Shell: 65mm - Cup Material: Steel - Weight: 173 grams
$9.79
- Thread: BC 1.37 x 24T - Caged bearing 1/4" x 9 - Fits most square taper cotterless BB axles - Spindle Type: SQR JIS - Cup Material: Steel
$7.19
- Fits 3-piece crank set - Includes right and left cup, lockring and bearings - English type - Shell: 68/73mm - Cup Material: Steel - Weight: 123 grams
$6.19
- With plastic washers - Shell: 8mm Allen head axle bolt
These bearing cups are suited for installation of the THM Clavicula on frames with bottom bracket housings to BB30 standard applicable to axles with 30 mm diameter. The bottom bracket housing is 68 mm wide and its inner diameter is 42 mm. The snap rings wich for the BB30 standard are used as limit stop when pressing in the bearings, must not be installed. The relatively small bearing clearance of 68 mm could lead to considerable axle deformations. Our solution with bearings at the outside involves a reduced load on the axle which can be seen from the higher rigidity. Another advantage is the facility of using the same crank for frames to BB30 standard and those with BSA or Italian thread. The increase in weight of the complete system is neglegible. Increase in weight: Road 12 g only
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