The RISK RL249 Bicycle Crank Cap Tool Series is designed for precise removal and installation of crank arm caps on compatible bicycle cranksets. This product includes two available options: the RL249 2-in-1 Crank Cap Removal Tool and the RL247 3/8" Ratchet Wrench.
The RL249 2-in-1 Crank Cap Tool features a dual-end design for two common crank cap interfaces. The 4-pin side is suitable for DUB crank caps, while the 11-tooth spline side is designed for Shimano XTR M9100 series crank caps. Made from lightweight aluminum alloy, the tool is compact, durable and easy to carry in a workshop or travel tool kit.
The tool can be driven by a standard 3/8" ratchet wrench from either side, and it is also compatible with an 8 mm hex wrench, giving mechanics flexible options for removal and installation. Clear directional markings on the tool body help guide correct operation.
The optional RL247 3/8" Ratchet Wrench is recommended for use with the RL249 tool. Its ratcheting mechanism allows smoother operation, while the ergonomic handle provides better grip and control during bicycle maintenance.
This series is ideal for bike shops, professional mechanics and home riders who need a clean, efficient solution for servicing DUB and XTR M9100 crank caps.
Note: This product page sells only the selected tool option. Bicycle cranksets, crank caps and other display items shown in images are for demonstration only.
Two Available Options
Choose from the RL249 2-in-1 crank cap tool or the RL247 3/8" ratchet wrench.
2-in-1 Crank Cap Tool Design
One tool supports both DUB crank caps and XTR M9100 11T crank caps.
4-Pin Side for DUB Crank Caps
Designed to remove and install compatible DUB crank arm caps.
11-Tooth Spline Side for XTR M9100
Suitable for Shimano XTR M9100 series 11-tooth crank caps.
3/8" Ratchet Compatible
The RL249 tool can be used with a standard 3/8" ratchet wrench from both ends.
8 mm Hex Wrench Compatible
Also works with an 8 mm Allen key / hex wrench for flexible use.
Lightweight Aluminum Alloy Tool Body
Compact, durable and easy to handle.
Ergonomic Ratchet Wrench Option
The RL247 wrench features a comfortable grip and smooth ratcheting operation.
Professional Bike Maintenance Tool
Suitable for MTB, road bike, gravel bike and workshop use.
Product Name:
RISK RL249 2-in-1 DUB & XTR M9100 Crank Cap Removal Tool
Short Description:
Compact aluminum alloy 2-in-1 crank cap tool for removing and installing DUB crank caps and XTR M9100 11T crank caps. Compatible with 3/8" ratchet wrench and 8 mm hex wrench.
Specifications:
| Item | Details |
|---|---|
| Brand | RISK |
| Model | RL249 |
| Product Type | 2-in-1 Crank Cap Removal / Installation Tool |
| Material | Aluminum Alloy |
| Color | Blue |
| Compatibility | DUB crank caps; Shimano XTR M9100 11T crank caps |
| Drive Compatibility | 3/8" Ratchet Wrench / 8 mm Hex Wrench |
| Size | Approx. 34 × 23 × 23 mm |
| Bottom Diameter | Approx. 29.6 mm |
| Net Weight | Approx. 47.5 g |
| Package Size | Approx. 100 × 80 mm |
| Gross Weight | Approx. 50 g |
Product Name:
RISK RL247 3/8" Ratchet Wrench for RL249 Crank Cap Tool
Short Description:
3/8" ratchet wrench designed for use with the RL249 crank cap tool and other compatible bicycle repair tools. Features a comfortable grip and smooth ratcheting action for easier maintenance.
Specifications:
| Item | Details |
|---|---|
| Brand | RISK |
| Model | RL247 |
| Product Type | 3/8" Ratchet Wrench |
| Drive Size | 3/8" |
| Color | Green / Black Handle |
| Length | Approx. 200 mm |
| Head Size | Approx. 31 mm |
| Head Thickness | Approx. 16 mm |
| Drive Square | Approx. 10 mm / 3/8" |
| Net Weight | Approx. 316 g |
| Package Size | Approx. 240 × 180 mm |
| Gross Weight | Approx. 320 g |
