Topeak TRI 0.6L Top-Tube Bag Black giant The system measures your power

The system measures your power within 1% accuracy for extremely reliable performance data

with great ergonomics and adjustable leverage ratio

Easy installation to the rear wheel

Precise and consistent shifting performance for MTB

5 1/8" long measuring clamp to clamp (127 mm)

Topeak TRI 0.6L Top-Tube Bag Black giant The system measures your powerQuickly mounts to the bike for quick and easy access to energy bars or any small essential gear. Padded and waterproof main compartment is perfect for stashing phone, energy bars, wallet, tools, and much more Nylon strap, top tube to stem bag attachments Made with 420 Denier and 840 Denier Nylon waterproof fabric, with Sonically welded seams Dimensions: 5. 7 x 1. 9 x 5. 0" Total Volume: Weight: 65. 0 g Color: Black