Bontrager Race X Lite ACC seatpost review

Sturdy composite shaft

Our rating 
3.0 out of 5 star rating 3.0
GBP £79.99 RRP | USD $99.99
Bontrager Race X Lite ACC

Our review

Sturdy composite shaft with a simple-to-operate clamp
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The clamp on this single-bolt Bontrager post has a polymer outer cone wedged into the tapered aluminium head to enable saddle tilt and fore/aft adjustment to be changed simultaneously. This makes fitting a breeze, but you do need to take care that tilt isn’t altered when you’re setting the saddle’s fore/aft position.


The shaft of the Race X Lite comprises a thin aluminium sleeve wrapped in a thicker layer of carbon fibre, which reduces the chance of a failure caused by overclamping but still damps out small vibrations like a carbon post. However, rough roads aren’t as well muted as with the best all-carbon designs.

Product Specifications


Name Race X Lite ACC (11)
Brand Bontrager

Description Range: 48mm
Weight (g) 226
Offset 20
Saddle Rail Compatibility 7mm
Lengths Available 330mm 400mm
Diameters Available 27.2mm 31.6mm