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PARK TOOL

PARK TOOL BBT-135-12 Bottom Bracket Tool

Manufacturer’s ref.: BBT-135-12
The PARK TOOL BBT-135-12 Bottom Bracket Tool is a robust tool precision-machined from 4140 steel for removing and installing certain 12-notch threaded bottom brackets,... Read more
Regular price 64,99 €
Regular price Sale price 64,99 €
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Description

The PARK TOOL BBT-135-12 Bottom Bracket Tool is a robust tool precision-machined from 4140 steel for removing and installing certain 12-notch threaded bottom brackets, including Praxis Works® M30 models.

Its extra-deep body accommodates the widest spindles, with thin walls at the engagement point for recessed lockrings. Three drive options — a 3/8" square drive, 1-inch hex drive and 36 mm wrench flats — help tackle even the most stubborn components using the tools available in your workshop.

Compatible with 12-notch bottom brackets with an outside diameter of 48 to 50 mm and an inside diameter of 46.3 mm, including Praxis Works® M30.

Integrated threading also allows use of the BBT-RS retaining system or GPS-1 guide pins (sold separately) for greater stability.

⚠️ Not approved for use with powered impact tools.

Technical information

Brand: Park Tool
Manufacturer part number: BBT-135-12
Category: Bicycle tools – Cranks and bottom brackets
Tool type: 12-notch bottom bracket tool (steel)
Compatibility: 12-notch bottom brackets, 48–50 mm OD / 46.3 mm ID (Praxis Works M30)
Drive options: 3/8" square, 1-inch hex, 36 mm flats
Material: Precision-machined 4140 steel
Compatible accessories: BBT-RS, GPS-1 guide pins (sold separately)
Warning: Not approved for powered impact tools
Made by: Park Tool, USA

Pricing information

*Recommended retail price from supplier in September 2026