SDG I-Beam Seat Post - 31.6mm - 400mm Length
An 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 ā the original āmono railā is the premier seat to post connection system, which utilizes the latest composite materials to create an extremely lightweight, yet unbelievably strong saddle and post combo. The I-Beam post features a single side bolt clamp design, which allows for simple installs and micro adjustments, while offering the widest range of fore/aft and precise tilt adjustments in the industry.
Specs
- Diameter: 27.2mm, 30.9mm, 31.6mm
- Length: 400mm
- Weight: 225g - 250g
Product Information
Product Information
Shipping & Returns
Shipping & Returns

SDG I-Beam Seat Post - 31.6mm - 400mm Length
SDG I-Beam Seat Post - 31.6mm - 400mm Length
An 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 ā the original āmono railā is the premier seat to post connection system, which utilizes the latest composite materials to create an extremely lightweight, yet unbelievably strong saddle and post combo. The I-Beam post features a single side bolt clamp design, which allows for simple installs and micro adjustments, while offering the widest range of fore/aft and precise tilt adjustments in the industry.
Specs
- Diameter: 27.2mm, 30.9mm, 31.6mm
- Length: 400mm
- Weight: 225g - 250g
Original: $97.29
-65%$97.29
$34.05Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
An 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 ā the original āmono railā is the premier seat to post connection system, which utilizes the latest composite materials to create an extremely lightweight, yet unbelievably strong saddle and post combo. The I-Beam post features a single side bolt clamp design, which allows for simple installs and micro adjustments, while offering the widest range of fore/aft and precise tilt adjustments in the industry.
Specs
- Diameter: 27.2mm, 30.9mm, 31.6mm
- Length: 400mm
- Weight: 225g - 250g
















