Profile Racing Race Cranks 165mm Bossless Chromoly 3-Piece BMX Crankset

The legendary Profile Racing Race Bossless Crankset is American-made 3-piece BMX crank system engineered for maximum strength, reliability, and performance.

Profile Bossless, or No Boss cranks, are exactly the same as the Race Cranks, except they don't have a boss to bolt a sprocket onto them, they require a Spline Drive Sprocket or Spider. They can be used for left or right hand drive.

Originally designed for BMX racing, the Profile Race cranks are the benchmark for BMX freestyle, and are often used for MTB as well. The Profile Race Cranks deliver exceptional performance thanks to heat-treated chromoly construction and Profile’s proven 19mm 48 spline interface.

This crankset includes everything required to run Profile cranks — except the bottom bracket, allowing riders to choose their preferred BB standard.

What’s Included

• Right & Left chromoly crank arms
• 19mm GDH heat-treated CrMo axle
• GDH chromoly axle bolts
• Flush mount washers
• Crank installation & removal tool

Bottom bracket sold separately.

Key Features

• Premium 3-piece BMX crankset
• Can be used as Left or Right-Hand Drive
• No sprocket boss for a cleaner look and use with spline drive sprockets and spiders
• Heat-treated Gun Drilled Hollow (GDH) chromoly axle for superior strength
• Proven Profile Racing spline interface
• Easy installation with included crank tool
• Titanium bolt and spindle upgrade options available
• Made in the USA
• Lifetime warranty for the original purchaser

Titanium Upgrade Options

Upgrade your crankset with optional titanium components for reduced weight and increased performance:

• Titanium axle
• Titanium axle bolts

19mm Axle Length Guide

Choose the correct axle length based on your bottom bracket setup:

• 5.25" — Track 68mm Internal Euro BB
• 5.625" — Mid, American, Spanish & Internal Euro BBs
• 6.0" — 68mm & 73mm External Euro BBs
• 6.875" — 83mm & 100mm Euro BBs

Crank Arm Weight (Per Set)

Axle Weight Options

Why Choose Profile Race Cranks?

• Industry leading BMX performance
• Exceptional durability
• Fully serviceable 3-piece design
• Wide compatibility across BMX bottom bracket standards
• Trusted by BMXers worldwide