SDG I-Beam Seat Post - 31.6mm - 400mm Length Exclusive The SnugTite system takes out

The SnugTite system takes out any play and the carrier can be key-locked to the vehicle

hindged for easy access

Strap style: Chest strap and wide velcro hip strap to carry weight

this sports backpack will serve you perfectly when you ride your mountain bike

SDG I-Beam Seat Post - 31.6mm - 400mm Length Exclusive The SnugTite system takes outAn engineering masterpiece. Proven, single bolt post which offers unrivalled ease of installation and fore aft micro adjustment to I Beam saddles. Bombproof design, with a 2014 aluminum hard anodized machined tube, paired with a cold forged 2014 head and clamp. While only compatible to SDG's patented I Beam Technology saddles the original mono rail is the premier seat to post connection system, which utilizes the latest composite materials to create