This ultra-light carbon seat post head is designed for Trek road bikes fitted with a round seat post, in particular the Émonda SL and SLR models. Available in a range of lengths, offsets and colours, it allows the rider's position to be precisely adapted while maintaining perfect aesthetic integration with the frame.

Its single-bolt design makes it easy to adjust the saddle backwards and offers precise angular adjustment. The carbon construction guarantees an excellent compromise between lightness, rigidity and comfort.

The masthead is supplied with carriages compatible with 7 mm round rails. Brackets for 7 x 10 mm carbon rails are sold separately.

Technical specifications :

- Carbon seat mast
- Compatible with Trek Emonda SL and SLR
- Offset: 5 mm or 20 mm
- Mast length: 135 mm or 175 mm
- Seat tube: 7 mm round
- Material: Carbon
- Brand: Trek