INSIGHT CHAIN TENSIONERS

Product Overview

The Insight Chain Tensioners are forged aluminum chain tensioners designed for 10mm axles. Featuring two adjustment holes and single-screw adjustment with counter nut, they provide secure chain tension control for BMX racing applications. Sold as a pair.

Key Features

• Forged aluminum construction – Forging process increases material density and strength compared to cast or stamped tensioners, improving durability under high chain tension
• Two adjustment holes – Multiple mounting positions allow fine-tuning of chain tension and rear wheel position
• Single-screw adjustment with counter nut – Simplified adjustment system uses one bolt with a locking nut to secure position once tension is set; prevents movement during riding
• 10mm axle compatibility – Designed for standard 10mm (3/8") BMX rear axles

Technical Specifications

• Material: Forged aluminum alloy
• Axle Size: 10mm (3/8")
• Adjustment Holes: 2 positions
• Adjustment System: Single screw with counter nut
• Quantity: Sold as a pair (left and right)

Compatibility and Ideal Use Cases

These tensioners are compatible with frames and dropouts that accept 10mm (3/8") axles and have provisions for chain tensioners. Not compatible with frames with integrated tensioners, vertical dropouts without tensioner mounts, or non-standard axle sizes. Ideal for racers using horizontal or track-style dropouts who need to maintain proper chain tension and prevent wheel slippage under power. The forged aluminum construction provides strength for high-torque applications while keeping weight lower than steel tensioners. The counter nut prevents the adjustment screw from loosening during riding, maintaining consistent chain tension.