Descriptions

The RISK RL320–RL326 Bicycle Bench Vise Clamp Blocks are professional bike repair fixtures designed to securely hold different bicycle components during maintenance, servicing, installation, and removal work.

Made from durable metal with a precision-machined structure, these clamp blocks are designed to be used with a bench vise. They help protect bicycle parts from direct vise pressure while keeping the component stable during repair. The clamp blocks are suitable for a wide range of bicycle parts, including bottom brackets, hubs, wheel axles, fork stanchions, suspension shocks, pedals, brake hoses, cable housing, cranksets, and other round or cylindrical components.

Each clamp block model covers a specific diameter range, allowing mechanics and cyclists to choose the correct size for different repair tasks. The blue clamp blocks feature a 23 mm thick body for stable clamping and are equipped with built-in magnets to help attach securely to metal vise jaws. A dedicated wall-mounted storage rack is also available for organizing the full clamp block set in workshops.

Ideal for bike shops, professional mechanics, home workshops, and cycling enthusiasts.

Key Features

Professional Bicycle Repair Tool
Designed for holding bicycle parts securely during servicing and maintenance.
Compatible with Bench Vises
Fits into standard bench vise jaws to provide safer and more stable clamping.
Protects Bike Components
Helps prevent direct contact between the vise and bicycle parts, reducing scratches, dents, and deformation.
Multiple Size Options
Available in six clamp block sizes covering diameters from 5 mm to 45 mm.
Magnetic Design
Built-in magnets help the clamp blocks attach to metal vise jaws for easier setup and stable positioning.
23 mm Thick Clamp Body
Thickened structure improves clamping stability during repair work.
Precision Machined Holes
Multiple diameter slots for different bicycle components and maintenance applications.
Wall Storage Rack Available
Optional RL326 storage rack keeps all clamp blocks organized and easy to access.
Wide Application
Suitable for bottom bracket, hub, wheelset, fork, shock, crank, pedal, brake hose, cable housing, seatpost, and other round parts.

Applications

These bicycle vise clamp blocks can be used for:

Bottom bracket maintenance
Hub and wheelset servicing
Front fork stanchion maintenance
Suspension shock servicing
Pedal servicing
Crankset installation and removal
Brake hose and cable housing clamping
Seatpost or tube holding
Axle and round component fixing
General bicycle workshop repair

Product Specifications

Item	Model	Diameter Range	Product Size	Approx. Net Weight	Package Size	Approx. Package Weight
Vise Clamp Block No.1	RL320	5–15 mm	255 × 28 × 23 mm	311 g / pair	30 × 12 × 3 cm	330 g
Vise Clamp Block No.2	RL321	15.8–20.5 mm	255 × 32.6 × 23 mm	314 g / pair	30 × 12 × 4 cm	330 g
Vise Clamp Block No.3	RL322	21.6–27.4 mm	255 × 40 × 23 mm	365 g / pair	30 × 12 × 4 cm	380 g
Vise Clamp Block No.4	RL323	27.9–32 mm	255 × 46 × 23 mm	389 g / pair	30 × 12 × 5 cm	405 g
Vise Clamp Block No.5	RL324	32.3–38 mm	255 × 50 × 23 mm	408 g / pair	30 × 12 × 6 cm	420 g
Vise Clamp Block No.6	RL325	40–45 mm	255 × 57 × 23 mm	432 g / pair	30 × 12 × 6 cm	450 g
Wall Storage Rack	RL326	For RL320–RL325	200 × 75 × 160 mm	423 g / set	30 × 25 × 10 cm	450 g

Size Details by Model

RL320 — Clamp Block No.1

Diameter range: 5–15 mm
Included sizes: 5, 6.2, 7.4, 8A, 8B, 9A, 9B, 9.5A, 9.5B, 10A, 10B, 10.4, 11, 11.5, 12, 12.7, 14, 15 mm

Best for small-diameter parts such as brake hose, cable housing, small rods, suspension parts, and other narrow bicycle components.

RL321 — Clamp Block No.2

Diameter range: 15.8–20.5 mm
Included sizes: 15.8, 16, 16.6, 17, 17.5, 18, 18.7, 19, 19.5, 20, 20.5 mm

Suitable for medium-small tubes, shafts, and bicycle service parts.

RL322 — Clamp Block No.3

Diameter range: 21.6–27.4 mm
Included sizes: 21.6, 22.2, 23.9, 25, 25.4, 26, 26.9, 27.4 mm

Suitable for fork parts, small seatposts, stems, tubes, and other cylindrical components.

RL323 — Clamp Block No.4

Diameter range: 27.9–32 mm
Included sizes: 27.9, 28.6, 30, 30.9, 31.6, 31.8, 32 mm

Suitable for common bicycle tube sizes, seatposts, fork stanchions, and other repair applications.

RL324 — Clamp Block No.5

Diameter range: 32.3–38 mm
Included sizes: 32.3, 34, 34.5, 34.9 / 35, 36, 38 mm

Suitable for larger fork stanchions, bottom bracket-related parts, hubs, and larger cylindrical bicycle components.

RL325 — Clamp Block No.6

Diameter range: 40–45 mm
Included sizes: 40, 42, 43, 44, 45 mm

Suitable for larger components such as suspension parts, bottom bracket components, hub shells, and oversized tubes.

RL326 — Wall Storage Rack

The RISK RL326 Wall Storage Rack is designed to store and organize the full RL320–RL325 clamp block set. It can be mounted on a wall, wooden tool board, or workshop panel using the included accessories.

Storage rack size: 200 × 75 × 160 mm
Package includes: storage rack, mounting accessories, screws