Hope RX4+ Disc Brake Caliper - Front Flat Mount Direct +20mm Mineral Oil Type Purple CheckoutTitle=Topeak Joeblow Mountain II Floor Pump - Steel Barrel / Plastic Base It’s fully constructed from durable

It’s fully constructed from durable CNC-machined aluminum and has a barrel that’s lightly knurled for slip-resistant operation

For tubeless setup Velocity recommends their 21mm Velotape (RS1005) Brake Compatibility Rim Brake Rim Width (Internal) 18 Brake Track Machined Manufacturer Spec ERD (mm) 550 Valve Presta Color Black Weight 420 Wheel Size 650c Defined Color Black ISO Diameter 571 / 650c Hub Drilling 32 Rim Material Alloy Tire Type Tubeless Ready Rim Center Offset (mm) 0 Hole Count 32H Rim Type Clincher

Key version includes 5 keys Length 182 Lock Style Keyed Advertised Weight 0

Measurement System Metric Misc 8 9 10mm Socket Tool Size 8mm 9mm 10mm

OPTIS (Odyssey Pneumatic Tire Insert System) is a lightweight highly tunable high-efficiency tubeless tire insert

Hope RX4+ Disc Brake Caliper - Front Flat Mount Direct +20mm Mineral Oil Type Purple CheckoutTitle=Topeak Joeblow Mountain II Floor Pump - Steel Barrel / Plastic Base It’s fully constructed from durableThe Hope RX4+ mineral oil type caliper builds on 25 years of experience designing and manufacturing hydraulic disc brakes and transfers that knowledge into the world of road and cyclocross drop bar brakes. A precision CNC machined monobloc design results in a stiffer caliper to give unrivaled feel and modulation. CNC machined monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub Slimline 4 piston lightweight design