TREK MADONE GEN 8 SEAT POST VIPER RED 2026-MTB-999to2999 Built on Hummvee's legendary mix

Built on Hummvee's legendary mix of functional versatility these waterproof trousers will do it all

Size: 20" x 2

Aluminium washers are not needed when used with aluminium seatstays

ISO 6742-rated

it's compatible with all standard metal and carbon saddle rails

TREK MADONE GEN 8 SEAT POST VIPER RED 2026-MTB-999to2999 Built on Hummvee's legendary mixGet back on the road with a genuine replacement seat post. Original replacement seatposts for your Madone SL R. Features Ultra light carbon construction Aerodynamic design 7 mm round, 9 mm oval and 10 mm oval saddle rail clamp ears sold separately Specification Size Mast x 150mm x 0mm Mast x 150mm x 20mm Mast x 190mm x 0mm Mast x 190mm x 20mm Diameter Mast Mast Mast Mast Length 150 mm 150 mm 190 mm 190 mm Offset 0 mm 20mm 0 mm 20mm Rail compatibility