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A 29″ steel frame hardtail trail bike with high-end components.
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Manufacturer Price
£4,600($6,170)| Weight | 5.6 lbs (frame) |
|---|---|
| Frame | Steel |
| Suspension | Hardtail, 120mm |
| Fork | RockShox SID Ultimate |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | XT |
| 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 premium steel hardtail designed for trail riding, bikepacking, and multi-day adventures, offering a smooth, efficient ride quality and dialed geometry. Its high-end materials and UK fabrication ensure durability and performance, with thoughtful details like multiple mounting points for bags and bottles. While it excels in versatility and ride feel, its price and limitations on extremely technical trails are noted.
Premium multi-butted steel construction for durability and performance
Dialed geometry ideal for trail riding and bikepacking
Multiple mounting points for bags and bottles
Smooth and efficient ride quality
High-end details and UK fabrication
Expensive price point
Limitations on extremely technical or gravity-focused trails
Near-vertical seat stays may reduce comfort on 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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Feb 2025 · Cory Benson
At the start of this year, Mason updated their made-in-Scotland Raw adventure hardtail mountain bike for the first time since its introduction 3.5 years ago.…

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
| Frame | Full UK construction, custom shaped and formed Dedacciai Zero/Uno & Reynolds steel tubeset. BB Standard: BSA, 73mm, Threaded Tire Clearance: 2.6" Colors: Filteryellow; Sensorblue; Vela; Opticgreen |
|---|---|
| Fork | RockShox SID Ultimate 120mm Travel: 120mm |
| Bottom Bracket | BSA, 73mm, threaded |
| 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 | Shimano Deore XT M8100 |
|---|---|
| Crank | Shimano Deore XT 32T M8100 |
| Shifters | Shimano Deore XT M8100 |
| Cassette | Shimano Deore XT M8100 10-51T |
| Chain | Shimano Deore XT 12spd. |
| Brakes | Hydraulic Disc Type: Hydraulic Disc |
| Rims | Choice of HUNT MTB wheelsets. |
|---|---|
| Tires | Choice of Maxxis, Schwalbe and Vittoria. |
First added May 27
Last updated January 11
Not listed for 503 days