Birzman Specialist Lockring Wrench (Shimano MF & Campagnolo)

An eye-catching streamline silhouette that is a Birzman signature design, this Specialist Lockring Wrench is compatible with Shimano® MF™ Freewheels, Campagnolo® Cassettes, BB and Rotors, or other similar 12-spline Ø22.6mm lockrings.

Made from extra-hard wearing materials, the Specialist Wrenches are a highly functional and durable combo to have in the workshop. Modular extension bar is available (BM11-ST-MHE-K) to increase the leverage of the wrench.

Material - CrMo / TPR

Key Features

• Compatible with Shimano MF freewheels and Campagnolo cassettes

• Fits 12-spline Ø22.6mm lockrings for accurate performance

• Suitable for BB and rotor lockring applications

• Durable CrMo construction for long lasting use

• TPR grip enhances comfort and control during operation

• Streamlined Birzman signature design

• Modular extension bar compatible for increased leverage

• Ideal for professional workshop and home maintenance

Product Specifications

• Brand: Value: Birzman

• Product Type: Value: Lockring Wrench

• Compatibility: Value: Shimano MF, Campagnolo, BB, Rotors

• Lockring Size: Value: 12-spline Ø22.6mm

• Material: Value: CrMo / TPR

• Extension Compatibility: Value: BM11-ST-MHE-K modular extension bar

• Usage Type: Value: Bicycle maintenance and repair

• Design: Value: Streamlined ergonomic structure

Performance & Precision

The Specialist Lockring Wrench is engineered for accurate fit and reliable torque transfer. Its precision-machined 12-spline interface ensures secure engagement with lockrings, reducing the risk of slipping or damage. The CrMo construction provides high strength and resistance against wear, making it suitable for repeated professional use. When paired with the modular extension bar, the wrench delivers increased leverage for handling tightly secured components efficiently.

Easy Operation / Usage

• Position the wrench securely onto the 12-spline lockring

• Apply steady pressure to loosen or tighten components

• Use modular extension bar for additional leverage if required

• Suitable for cassette, bottom bracket, and rotor maintenance

• Ideal for workshop or home bike repair use

Why Choose This Product

• High compatibility with popular lockring standards

• Durable materials ensure long term performance

• Ergonomic grip improves handling comfort

• Extension bar option allows increased torque control

• Professional quality tool for accurate bicycle servicing

• Trusted Birzman design and engineering

In the Box

• Birzman Specialist Lockring Wrench