Thomson Elite Seatpost 27.2 x 410mm Silver 197x57 2014-2016 Trek Wheel Diameter: 150 mm /

Wheel Diameter:    150 mm / 5

5"/29" A1 100mm X-Firm Black

high grade 4130 grade steel designed specifically for E-Bikes and longer wear

9mm Cable Routing Internal Primary Color Black Seat Post Material Aluminum

Air spring has a positive and self balancing negative chamber and it can be tuned with a new spacer system

Thomson Elite Seatpost 27.2 x 410mm Silver 197x57 2014-2016 Trek Wheel Diameter: 150 mm /Claimed 40% stronger on ultimate strength test than the strongest production seatposts on the market Post and cradle machined from 1 piece 7000 aluminum 41mm rail clamping area, micro adjust and dual pivoting bolt head Zero clamp offset, 235g (27. 2x330mm) Model Elite Diameter 27. 2mm Length 410mm Setback Zero Material Aluminum Color Silver