Description
Insight RLC 2-Piece Crankset
Product Overview
The Insight RLC is a lightweight BMX racing crankset featuring forged aluminum crank arms paired with a chromoly SCM435 spindle. Available in 165mm, 170mm, 175mm, and 180mm lengths, it uses a 104mm BCD 4-bolt chainring pattern and chromoly pedal inserts for durability.
Key Features
- Forged Aluminum Crank Arms – Lightweight construction reduces rotational weight while maintaining strength for racing demands
- Chromoly SCM435 Spindle – High-strength steel spindle provides durability and resistance to bending under load
- 24mm Spindle Diameter – Standard BMX spindle size compatible with press-fit bottom brackets
- 104mm BCD 4-Bolt Pattern – Works with standard BMX chainrings; enables easy gear changes for different riding styles
- Chromoly Pedal Inserts – Reinforced threading in pedal axle holes resists stripping and extends lifespan
- Multiple Crank Lengths – Available in 165mm, 170mm, 175mm, and 180mm to accommodate different rider heights and preferences
- Lightweight Design – Competitive weights across all sizes for racing-focused builds
Technical Specifications
- Crank arm material: Forged aluminum
- Spindle material: Chromoly SCM435 steel
- Spindle diameter: 24mm
- Bottom bracket: Press-fit (not included)
- Chainring pattern: 4-bolt, 104mm BCD
- Pedal inserts: Chromoly
- Crank length options: 165mm, 170mm, 175mm, 180mm
- Weight (with bolts):
- 165mm: 815g (28.75 oz)
- 170mm: 833g (29.38 oz)
- 175mm: 870g (30.68 oz)
- 180mm: 863g (30.44 oz)
Compatibility & Ideal Use Cases
- BMX racing and practice – Purpose-built for racing applications requiring lightweight, durable components
- Press-fit bottom brackets – Requires compatible press-fit BB (sold separately); verify your frame's BB shell size before ordering
- 104mm BCD chainrings – Compatible with Insight and other brands offering 104mm 4-bolt chainrings
- Pedal compatibility – Works with standard BMX pedals; use supplied washers for secure installation
- Crank length selection – Choose based on rider height and personal preference; longer cranks increase leverage, shorter cranks improve maneuverability
Important Notes
- Bottom bracket not included; purchase separately based on your frame's BB shell size
- Pedals must be installed with supplied washers
- Use calibrated spoke tension meter and proper assembly techniques for optimal performance
- Verify press-fit BB compatibility with your frame before ordering



