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RovalAlpinist Carbon Post


Item # RVJ000N

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  • Black, 27.2mm x 300mm ($274.99)
  • Black, 27.2mm x 360mm ($274.99)
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Item # RVJ000N

Why We Like The Alpinist Carbon Post

Lightweight carbon posts won't go out of style and the Roval Alpinist Carbon Post fits in on our road and gravel rigs. We haven't found many lighter posts in the market, and at 136g we're out of excuses too. The adjustable 12mm setback fits right in the middle, keeping us comfortably on the pedals while we put ourselves in the hurt locker.

  • Lightweight carbon post for gravel, cyclocross, and road bikes
  • Advanced carbon composite construction is strong enough to support up to 275lbs
  • 2-bolt adjustment to change offset
  • Starting weight for a 27.2mm x 300mm post is 136g

Tech Specs
Materialcarbon fiber
Length300mm, 380mm
Manufacturer Warrantylifetime
Activityroad cycling

Actual Weight

Black, 27.2mm x 300mm
Black, 27.2mm x 360mm

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[300mm] 4.8oz

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead

What do you think about this product?



I see you mentioned below that the seatpost will fit 9x7mm rails. How about 10x7mm (fizik adaptive R1 is 10x7mm)? Thanks!


What is the min insertion measurement on the 300mm?

>Rating: 4

Easy installation, with a caveat

I've put it through the wringer
True to size

Beautiful carbon, very light and stiff. Love the incremental lines on the back for measurement, with each being about 5 mm. The installation is easy, as well as adjustments, If you have an open channel saddle. I have the power arc and its very easy to be a 5 mm Allen key in between the saddle from the top and adjust.


Does this come with hardware to allow for oval 7x9mm for carbon saddles?

Hi Lance, Since the post clamps the rails from above and below instead of the side like a single bolt clamp, then it's completely compatible with carbon oval rails which are all generally 7x9mm.


Is this seatpost compatible with Oval Rails - Carbon Saddles?

>Rating: 2

very, very difficult to mount a seat

I returned this product before using it

Beautiful and light minimalistic seat post but the front mounting bolt cannot be accessed with a torque wrench unless the seat has a wide open middle channel. I tried to mount a Fabric Radius seat but because the front bolt head faces up toward the seat, it can only be tightened by using a thin metal rod/nail/tool that you slide thru small holes drilled into the sides of the bolt. You can only tighten the bolt in small increments. Because you can't use a torque wrench I ended up guessing how much to tighten it. The back mounting bolt head faces down away from the seat so a torque wrench can be only be used on this bolt. I ended up returning the post to Competitive Cyclist for a refund.

>Rating: 3

Installation difficult

True to size
5` 11"
170 lbs

I purchased this seatpost because it has an intermediate setback (12mm), is relatively light, and was in stock. I have hit two issues with it. The first issue is the front mounting bolt was too short for use with my Selle SMP saddle. This saddle requires the rail to be at an incline. The provided bolts only allow level and decline. I had to purchase a longer 40mm titanium bolt for the front. Installing the new bolt required inserting a wooden dowel into the end of the post to hold the threaded part inside while rethreading. The second issue is the torque specs for the front and rear bolts are very different (3.1 Nm front and 6.2 Nm rear). I found it impossible to set each torque without either increasing the saddle incline or inducing excess torque on the front bolt. In the end, I had to use a reduced torque value on the rear, 4 Nm. Hope it holds. In general, I think the saddle mounting arrangement needs rethinking.