RISK RA125 Aluminum M15x19 Spline Bottom Bracket Crank Bolts with Washers, 2PCS Bike BB Locking Screws

The RISK RA125 Aluminum Spline Bottom Bracket Crank Bolts are designed for bicycle crank and bottom bracket fixing applications. Made from 7075 aluminum alloy, these bolts are lightweight, strong, and precisely machined for a secure fit.

Each pack includes 2 M15x19mm bolts and 2 washers, suitable for one bike setup. The included washers help increase the contact area during tightening, reducing wear and protecting related components. Available in Black and Red, these bolts also add a clean custom look to your bike.

Key Features

• Brand: RISK
• Model: RA125
• Product Type: Spline bottom bracket / crank fixing bolts
• Material: 7075 Aluminum Alloy
• Size: M15x19mm
• Washer Thickness: Approx. 2mm
• Tool Required: 10mm Allen key
• Recommended Torque: 35–50 N·m
• Single Weight: Approx. 6.95g with washer
• Package: 2 bolts + 2 washers per bag
• Colors: Black / Red
• Finish: Anodized color finish
• Logo: Laser-engraved RISK logo

Key Benefits

• Made from high-strength 7075 aluminum alloy
• Lightweight design for bike weight reduction
• Fine thread machining for secure and stable tightening
• Washer design helps protect parts from scratches and wear
• CNC-machined for accurate size and smooth finish
• Anodized surface for better color and appearance
• Laser-engraved RISK logo for branded quality
• Suitable for replacing or upgrading original crank bolts

Suitable For

• Mountain bikes
• Road bikes
• Gravel bikes
• Bicycle crank fixing
• Bottom bracket spline bolt replacement
• Compatible M15x19mm crank bolt applications
• Bike repair, maintenance, and customization

Notes

• Please confirm the required bolt size before purchase.
• Size: M15x19mm, washer thickness approx. 2mm.
• Use a 10mm Allen key for installation.
• Recommended tightening torque: 35–50 N·m.
• Washers can be used according to actual installation needs.
• Manual measurement may have slight differences.
• Please note: this product is a fixing bolt set, not a complete bottom bracket.

Product Details