2019 Diamondback

Mason 1

A 27.5″ aluminum frame hardtail trail bike with upper mid-range components and mechanical disc brakes.
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MSRP$799
FrameAluminum
SuspensionHardtail, 120mm
ForkSuntour XCR
Wheels27.5″ Aluminum
Drivetrain1 × 10
GroupsetDeore
BrakesMechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Mason 1
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

22 mph

Mason 1

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
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

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

Travel: 120mm

Spring Type: Coil

Bottom Bracket

Sealed Cartridge

Headset

FSA NO.57, Sealed Cartridge for Tapered Headtube

Stem

DB35 Alloy, 60mm, 35mm Bar Bore

Handlebar

DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore

Saddle

DB Race M-series Saddle

Seatpost

DB Alloy Micro Adjust, 30.9mm

Type: Rigid

Pedals

DB4L Alloy w/ Molded Traction Pins

Grips

DB "Flanged" 135mm Silicone

Groupset
Rear Derailleur

Shimano Deore M6000 Shadow Plus, 10 Speed

Crank

Alloy Arm w/ 30T Steel "Narrow Wide" Single Ring

Shifters

Shimano Deore M6000, 10 Speed

Cassette

Shimano HG500, 10 Speed, 11-42T

Chain

KMC X10, 10 Speed

Brakes

Tektro Aries Mechanical Disc, w/ 180mm Front / 160mm Rear Rotors

Type: Mechanical Disc

Brake Levers

Tektro 2 Finger Alloy Linear w/ Reach Adjust

Wheels
Rims

Diamondback MD35 35mm Doublewall, 32h

Spokes

14g Stainless Steel

Front Hub

32h Alloy, Boost 110x15mm, w/ CNC Disc Mount

Rear Hub

32h Alloy, 10mm QR, Cassette w/ CNC Disc Mount, 141mm

Tires

Vee Rubber Bulldozer, 27.5x3.0 Tires

Rider Notes
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Last updated August 8
Not listed for 1,710 days