Topeak MTX Beamracks E-Type Variant:Topeak Rack MTX Beamrack (E-Type, for S / M size frames) The BSA track bottom bracket

The BSA track bottom bracket is the "yes" component to "Is that compatible with my track frame

Rail: 7x7 mm

Urban commuting

new iterations were carefully tested with great focus put on understanding how pressure patterns change according to different bike geometries

HEAD Tubi head with extra-long 360 degree pivoting hose and built-in hose pressure release button

Topeak MTX Beamracks E-Type Variant:Topeak Rack MTX Beamrack (E-Type, for S / M size frames) The BSA track bottom bracketFor MTB or heavy commuting use. QR mechanism is secure and easy to use. 9 kg (20 lb) carrying capacity. Compatible with all MTX TrunkBags. Includes two rubber bungees and safety reflector. Compatible with MTX TrunkBags Features a quick release clamp mount Safety reflector is included Integrated rubber bungee cord secures your cargo CLAMP Fits 25. 4 31. 8 mm (shims Incl.) MATERIAL Aluminum Beam BAG COMPATIBILITY MTX TurnkBags MAX WEIGHT CAPACITY 9 kg