WAHOO Trackr Heart Rate Monitor rear-derailleur Compliant with any race which

Compliant with any race which allows extensions which do not protrude beyond the brake hoods

Featuring premium double wall rims

Alloy linear pull and Hi-stop coaster brake with youth specific alloy lever

For handlebar clamp ShiftMounts tighten clamp bolt to 1-2 Nm max torque

and for much of year you won’t leave home without them either on or in your pockets

WAHOO Trackr Heart Rate Monitor rear-derailleur Compliant with any race whichAccurate, reliable, comfortable and connected, the Wahoo TRACKR HEART RATE monitor offers athletes everything they need from a heart rate sensor to take their performance to the next level. Tech Specs: Weight: 1. 4 oz (39 g) with strap Battery: Rechargeable Lithium Ion Battery Life: Over 100 Active Hours Sweatproof: Yes (Handwashable Strap) Water Rating: IPX7 (up to 1 meter for 30 minutes) Strap Length: Adjustable from 27" to 36" (68cm to 91cm)