TREK MADONE GEN 8 SEAT POST VIPER RED Diameter x Length x Offset:Mast x 150mm x 0mm This is not possible with

This is not possible with any other material

The children will enjoy comfortable seating and large windows  which gives them a good view on every trip

Height / width rim: 21mm / 28

8mm handlebar clamp

Gear ratios: 12-speed

TREK MADONE GEN 8 SEAT POST VIPER RED Diameter x Length x Offset:Mast x 150mm x 0mm This is not possible withGet 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