2026 Specialized Roval Alpinist Seatpost
Specialized Roval

2026 Specialized Roval Alpinist Seatpost

$276.25 $232.05 Save $44.20
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Roval Alpinist Seatpost
Roval Alpinist Seatpost
Carbon Seatpost · 136g · 27.2mm · 12mm Setback · 2-Bolt Micro-Adjust

The Roval Alpinist Seatpost is the lightest post Roval has ever made that passes their standards — at 136 grams (27.2mm × 300mm), it's about as light as you'll find. Not only does light weight make for faster climbing and better acceleration, it also improves ride quality. The 2-bolt micro-adjust clamp with extended saddle cradle ensures precise fit and secure retention, and it's backed by a no-fault crash replacement policy and lifetime warranty.

  • 136g: Ultra-lightweight carbon post (27.2mm × 300mm) — Roval's lightest ever.
  • 2-Bolt Micro-Adjust: 46mm saddle rail cradle — effective offset from 0mm to 20mm.
  • 12mm Setback: All sizes include 12mm setback for proper saddle positioning.
  • 2 Sizes: 27.2mm × 300mm and 27.2mm × 360mm.
  • Carbon + Alloy Compatible: Works with carbon and alloy rail saddles.
  • No-Fault Crash Replacement: Lifetime crash replacement policy.

27.2mm is the standard road seatpost diameter — confirm your frame accepts 27.2mm before ordering. The Alpinist is designed for road bikes where every gram matters and a 27.2mm post is the frame standard.

136g — What You Give Up for Ultra-Light
At 136g, the Alpinist is one of the lightest seatposts available. The trade-off for ultra-light weight is minimal material — you get a very slender post with thin walls. If you're a lightweight rider who prioritizes climbing performance, this post is excellent. If you're a heavier rider or you regularly put down serious power through the saddle, you might prefer a slightly heavier post with more material for durability. The no-fault crash replacement helps mitigate the durability concern.
0mm to 20mm Offset from a 12mm Setback Post
The Alpinist has a 12mm built-in setback, but the 2-bolt clamp allows 46mm of saddle adjustment forward/back. This effectively gives you 0mm to 20mm of setback depending on how you position the saddle in the clamp — the 12mm is the center of the adjustment range. Most riders will find their perfect position within this range.
Carbon Rails vs. Alloy Rails — Compatibility
The Alpinist's 2-bolt clamp with 46mm rail cradle is compatible with both carbon and alloy saddle rails. The wide saddle rail contact area distributes clamping force evenly, which is actually better for carbon rails than narrow clamps that can create point loads. If you have a carbon-railed saddle, the Alpinist is a good match — just don't over-tighten the bolts.
Weight (27.2mm × 300mm)
136g
Advanced carbon composite construction
General
Model
Roval Alpinist Seatpost
Material
Advanced carbon composite — lightweight and reliable
Weight Limit
275 lbs / 125 kg
Warranty
Limited Lifetime Warranty + No-Fault Crash Replacement
Dimensions
Diameter
27.2mm (standard road)
Setback
12mm (built-in)
Effective Offset Range
0mm to 20mm (via 2-bolt clamp)
Sizes
27.2mm × 300mm
12mm setback
27.2mm × 360mm
12mm setback
Clamp
Type
2-bolt micro-adjust with extended saddle cradle
Rail Cradle
46mm — fits carbon and alloy rails

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

Riding Gear & Apparel:

Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 1–3 business days.

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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