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

Aluminium washers are not needed when used with aluminium seatstays

With the lightest weight materials and a 520-percent gear range

Shimano 7speed Gears: Wide-range gearing is simple to use and offers reliable shifting

ISO 6742-rated

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