A suitable choice for anyone replacing a worn MTB bottom bracket on a frame with a BSA 68 or BSA 73 shell and compatible TRUVATIV Power Spline cranks.
The TRUVATIV PowerSpline Bottom Bracket is a replacement MTB bottom bracket for compatible Power Spline cranksets. The 12-spline Power Spline interface provides a secure connection between the bottom bracket spindle and crank arms, making it a practical choice for servicing an existing drivetrain.
Its heat-treated chromoly spindle is designed to handle demanding riding and deliver long-term durability. The 363 g weight is based on the BSA 73 mm, 113 mm spindle configuration, while the available specifications include 113 mm and 118 mm spindle lengths plus BSA 68 and BSA 73 shell options.
Check your frame shell width, required spindle length and crank compatibility before ordering. Crank bolts are included, and installation is best handled by a qualified bicycle mechanic using the correct tools and torque settings.
Power Spline interface
The 12-spline connection is designed for compatible TRUVATIV MTB cranksets and provides a durable crank-to-spindle interface.
Heat-treated chromoly spindle
Strong spindle construction is built to withstand demanding mountain-bike use.
BSA shell compatibility
Available for English-threaded BSA 68 mm and BSA 73 mm bottom bracket shells.
Two spindle lengths
113 mm and 118 mm options help you match the bottom bracket to your crankset and required chainline.
49.0 mm chainline
The specified chainline supports correct drivetrain positioning when paired with the appropriate crank and spindle configuration.
Crank bolts included
The package includes crank bolts, helping provide the essential hardware for installation.
Workshop installation recommended
A qualified bicycle mechanic can confirm frame and crank compatibility and install the unit with the correct torque.
General
Dimensions & weight
Construction
Compatibility
Installation & service
Power Spline
The 12-spline spindle interface provides a durable connection for compatible MTB cranksets.
Heat-treated chromoly spindle
Heat-treated chromoly construction is designed to withstand demanding riding and deliver long-term durability.
Dependability and style
TRUVATIV is a cycling component brand known for mountain-bike drivetrain and cockpit products, including cranks, bottom brackets and chainrings. The brand’s product range includes the Descendant, Stylo, Noir, Holzfeller and Hussefelt series.
TRUVATIV became part of SRAM in 2004. Its products are positioned around dependable construction, practical performance and distinctive styling across mountain-bike component categories.
