What’s the deal with these so-called 27.5 plus bikes? In a nutshell, bigger tires. If that doesn’t sound exactly revolutionary, consider this: Plus-size tires add insane levels of traction and control to trail bikes without adding weight and slowing you down. The Diamondback Mason 1 is a hard-charging hardtail that plows through the rough stuff, yet remains fun and flickable.
The Mason 1 gets the job done and keeps things simple with sturdy double wall wheels wrapped with 27.5 x 3.0 inch tires. The 1x10 drivetrain keeps shifting simple, meaning no pesky front derailleur to fiddle with while you monster-truck over rocks and roots. Take the trail less traveled? Sure. And with the Mason 1 you’ll be ripping the trail less traveled.
Frame | Mason 27.5" Plus 6061-T6 Weapons Grade Aluminum w/ Double Butted Formed Top Tube, Down Tube, Seatstays, Tapered Head Tube, ISCG-05 Tabs, 9mm Boost Dropouts, w/ Replaceable Hanger |
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Fork | SR Suntour XCR34 27.5"+ Suspension Fork, 120mm Travel, Coil Spring, 6061 Forged Alloy Crown, Alloy Tapered Steerer Tube, 34mm Stanchions, 110x15mm Thru-axle |
Headset | FSA NO.57, Sealed Cartridge for Tapered Headtube |
Cranks | Alloy Arm w/ 30T Steel "Narrow Wide" Single Ring |
Bottom Bracket | Sealed Cartridge |
Rear Derailleur | Shimano Deore M6000 Shadow Plus, 10 Speed |
Shifter | Shimano Deore M6000, 10 Speed |
Cogset | Shimano HG500, 10 Speed, 11-42T |
Chain | KMC X10, 10 Speed |
Front Hub | 32h Alloy, Boost 110x15mm, w/ CNC Disc Mount |
Rear Hub | 32h Alloy, 9mm QR, Cassette w/ CNC Disc Mount |
Spokes | 14g Stainless Steel |
Rims | Diamondback 35mm Doublewall, 32h |
Tires | Chaoyang Big Daddy 27.5 x 3.0 |
Brakes | Tektro Aries Mechanical Disc, w/ 180mm Front / 160mm Rear Rotors |
Brake Levers | Tektro 2 Finger Alloy Linear w/ Reach Adjust |
Pedals | DB4L Alloy w/ Molded Traction Pins |
Handlebar | DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore |
Grips | New DB "Flanged" 135mm Silcone |
Stem | DB35 Alloy, 60mm, 35mm Bar Bore |
Seat | DB Race M-series Saddle |
Seatpost | DB Alloy Micro Adjust, 30.9mm |
Extras | Owner’s Manual, Assembly Guide, Tool Kit* |
Bike Size | SM/15.5 | MD/17 | LG/19 | XL/21 | |
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Seat Tube Length | 395.0mm | 420.0mm | 470.0mm | 520.0mm | |
Stand Over Height | 754.0mm | 758.0mm | 777.0mm | 798.0mm | |
Top Tube Length | 570.0mm | 585.0mm | 614.0mm | 640.0mm | |
Stack | 604.0mm | 604.0mm | 604.0mm | 604.0mm | |
Reach | 400.0mm | 418.0mm | 435.0mm | 455.0mm | |
Head Tube Length | 110.0mm | 110.0mm | 110.0mm | 110.0mm | |
Head Angle | 68.0° | 68.0° | 68.0° | 68.0° | |
Seat Angle | 73.0° | 73.0° | 73.0° | 73.0° | |
Wheel Base | 1089.0mm | 1131.0mm | 1149.0mm | 1168.0mm | |
Chain Stay Length | 440.0mm | 440.0mm | 440.0mm | 440.0mm | |
Fork Offset | 51.0mm | 51.0mm | 51.0mm | 51.0mm | |
BB Drop | 55.0mm | 55.0mm | 55.0mm | 55.0mm | |
Stem Length | 60.0mm | 60.0mm | 60.0mm | 60.0mm | |
Handlebar Width | 760.0mm | 760.0mm | 760.0mm | 760.0mm | |
Crank Length | 170.0mm | 175.0mm | 175.0mm | 175.0mm | |
Seat Post Length |
Customer Reviews Write Your Own
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Great bike
Review by Jordan