Hope RX2 Flat Mount Caliper - Mineral Oil - Blue Advance If your measurements for chest

If your measurements for chest and waist correspond to two different suggested sizes

as well as accessory ports for the Park Tool #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately)

3M tailgate

Extreme compact design with high pumping volume

Size: 42 x 28

Hope RX2 Flat Mount Caliper - Mineral Oil - Blue Advance If your measurements for chestThe RX2 caliper is a compact version of our RX4+, designed specifically for drop bar bikes. Optimized for tight rear frame clearances, especially on smaller sizes. Features a new bleed nipple for easier, cleaner maintenance. Features Caliper Type: 2 piston version of the RX4+ road gravel caliperFootprint: Smaller caliper footprint for improved fit on frames with restricted spacePower: Similar power output to the RX4+Bleeding: New bleed nipple design