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A 29″ steel frame hardtail trail bike with high-end components.
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Manufacturer Price
£4,695($6,297)| Weight | 5.6 lbs (frame) |
|---|---|
| Frame | Steel |
| Suspension | Hardtail, 120mm |
| Fork | RockShox SID Ultimate |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 Electronic |
| Groupset | Eagle AXS, GX Eagle AXS |
| Brakes | Hydraulic Disc |
| Seatpost | Dropper |
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full RAW model range
View Comparison5'3" – 5'7"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'6"
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Summary
The Mason RAW is a high-end steel hardtail designed for trail riding, bikepacking, and multi-day adventures, offering a smooth, efficient, and lively ride quality. Its geometry is dialed for stability and comfort, with high-end materials and meticulous UK fabrication. While it excels in versatility and ride quality, its premium price reflects its bespoke construction and features.
High-end steel tubing for durability and performance
Dialed geometry for trail riding and bikepacking
Smooth and efficient ride quality
Multiple accessory mounting points for versatility
Lightweight frame with excellent build quality
Premium price point
Limited rear rack compatibility
May feel harsh on very rough terrain
The Mason RAW is smooth and lively, rides in a heavier weight class than Mason originally intended, and might just be the closest thing I’ve experienced to the infamous forever bike we’re all searching for.BIKEPACKING.com
If you're looking to build the, want a steel frameset designed and built in the UK with truly fanatical attention to detail that delivers an outstanding ride to match, the Mason offers an interesting proposition with its new Raw.
The RAW is top of its class.
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Aug 2023 · Miles Arbour
Find our long-term review of the Mason RAW after countless unloaded rides in the Pacific Northwest and bikepacking trips in Idaho and beyond
European/UK materials and fabrication using high-end Dedacciai and Reynolds tubing
Dialed geometry for trail riding, bikepacking, and multi-day epics
Smooth and efficient ride quality makes climbing, descending, and cornering a joy
High-end details, rack mounts, downtube mounts, and top tube mounts
Lots of frame bag space thanks to higher standover height
Lightweight frame and build kits are well-specced for long rides
Expensive, but justifiably so given local manufacturing, cost of materials, and overall quality
No sliding rear dropouts
Near-vertical seat stays might make it a little harsher than some other frames
No proper rear rack bosses at rear dropouts, although hidden removable ones work
Wouldn’t choose Hunt Proven carbon XC wheels for bikepacking

May 2022
Mason delivers its first mountain bike frame with the RAW - a steel hardtail with bespoke levels of design and manufacturing detail. The Raw is aimed at long-distance fast off-road riding and offers an engaging, supple ride feel. The RAW is top of its class. The best gravel and adventure bikes you can buy for under £2,000 Factor blasts into the mountain bike market What is downcountry?
Nov 2021 · Guy Kesteven
The new Raw MTB frame from UK fast/far artisans Mason is a steel masterpiece but at what price?
Beautifully bright and alive ride vibe
Taut under power but still shrugs off slaps
Stable for security but never dull
Totally custom-tuned tube sets
Superb Scottish build and paint quality
Fully corrosion proofed
Loaded with bike packing features
Big tire clearances
Price

May 2021 · Cory Benson
This Mason RAW prototype is a steel MTB adventure hardtail coming soon to bikepacking near you, combine with new Hunt Carbon Dynamo wheels!
| Frame | Full UK construction, custom shaped and formed Dedacciai Zero/Uno & Reynolds steel tubeset. Tire Clearance: 2.6" Colors: Filteryellow; Sensorblue; Vela; Opticgreen |
|---|---|
| Fork | RockShox SID Ultimate 120mm. Travel: 120mm |
| Headset | Deda EC/ZS44mm sealed bearing headset. |
| Stem | Ritchey Trail WCS. |
| Handlebar | Renthal FatBar 2 |
| Saddle | Fizik Terra Argo X3. |
| Seatpost | PNW Loam 31.6 dropper post. Type: Dropper |
| Grips | Ergon GA2. |
| Rear Derailleur | SRAM GX AXS Eagle Wireless. |
|---|---|
| Crank | SRAM GX Eagle Alloy 32T Chainset. |
| Shifters | SRAM GX AXS Eagle Wireless. |
| Cassette | SRAM XG-1275 10-52T. |
| Chain | SRAM GX Eagle 12spd. |
| Brakes | Hydraulic Disc Type: Hydraulic Disc |
| Rims | Choice of HUNT MTB wheelsets. |
|---|---|
| Tires | Choice of Maxxis, Schwalbe and Vittoria. |
First added February 4
Last updated May 25
Not listed for 734 days