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Ritchey WCS 1-Bolt Seatpost

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Mountain Bike Seatposts & Clamps we have in stock.

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WCS 1-Bolt Seatpost

Sleek and durable, the WCS 1-Bolt Seatpost showcases the hallmarks of Ritchey’s design philosophy in a 3D-forged alloy post. Using a single side-load clamp provides a streamlined adjustment for both seat angle and fore-aft positioning. Two setback options allow you to perfect your fit to maximize pedaling efficiency: a 20mm offset provides a more relaxed position, while the 0mm places you closer to the bars for a more compact position. The WCS 1-Bolt is compatible with alloy-rail saddles, though an interchangeable clamp is available from Ritchey directly for use with carbon rails.

  • Light and durable post for your road or gravel bike
  • Single-bolt design simplifies saddle position adjustment
  • Two offset options for either a more elongated or compact fit
  • Item #RITA09R

3D forged 7050 alloy
[27.2mm] 350mm
Claimed Weight
6.9oz (195g)
Recommended Use
gravel, road cycling
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?


>Rating: 3

Much Heavier Than Claimed

True to size

CC lists the weight for the 27.2 x 350 setback version at 160 grams, but Ritchey claims the weight is 195 grams, and the seatpost I received comes in at 230 grams. That’s 45% higher than the CC claim, and almost 20% heavier than the Ritchey spec. I don’t mind if a component is a bit heavier than advertised, as samples can vary a bit, but this post is much heavier than advertised. Not sure where CC got the 160 gram weight, probably just a listing error, but I’m disappointed that this fairly expensive aluminum post is nowhere near the weight claimed by either the maker or the seller.

>Rating: 5

Awesome perch for your saddle

I've used it several times

The best part of this seat post is how quick and easy it is to dial it in. The simple 1 bolt design makes adjustments a breeze, there is no awkward fighting with that front bolt on a 2 bolt design, worth it to me.