Definition Shimano
mason
Endurance
Definition Shimano is an alloy endurance road bike (2024), by Mason, in the Definition series. This bike is aimed at a wide range of riders thanks to its fit flexibility, with a setup that gives you a balanced riding position, with a surface profile that is well suited to rougher pavement and broken roads. Its profile is strongest in areas like good fit flexibility for dialing in rider position, strong speed potential on smoother terrain, and strong value-for-money versus many similar bikes. Next step: compare this bike with other endurance models on MatchBikes.com.
5.7
Rating

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Score Summary
Performance
4.4
Value
7.3
Fit
6.4
Performance
Built for speed and efficiency
Speed
7.5
High
Climbing Efficiency
3.3
Hefty but Manageable
Aerodynamics
6.0
Balanced Aero
Fit
Dialed-in Fit & Comfort
Riding Position
5.7
Balanced
Fit Flexibility
8.7
Adjustable
Ride Comfort
5.0
Balanced
Value
Value for Money
7.3
Great Value
Surface Range
Rough RoadSpecifications
General
Brand
mason
Model
Definition Shimano
Year
2024
Price
$3,620
Category
Road
Sub Category
Endurance
Groupset
Dura-Ace
Wheels
700c
Frame
Frame
MASON x Dedacciai Custom Aluminium.
Suspension Fork
MASON Aperture2 full carbon fork.
Suspension Type
Rigid
Drivetrain
Shift Levers
Shimano 105 / Ultegra / Dura-Ace - As Selected.
Cassette
11-34. 105 / Ultegra / Dura-Ace - as selected. Alternative ratios available on request.
Crank
50/34. Select From: 105 12spd Mechanical / 105 12spd Di2 / Ultegra 11spd / Ultegra Di2 12spd / Dura-Ace Di2 12spd.
Chain
Shimano 105 / Ultegra / Dura-Ace - as selected. Other options available on request.
Wheels
Rims
Select From: HUNT / DT Swiss / Campagnolo. Other options available on request.
Tires
700c. Select From: Rene Herse / Schwalbe / Continental / Vittoria.
Brakes
Brake Type
Rim
Brake Description
Rim
Cockpit
Stem
Select Various Lengths. Choose From: DEDA ZER0100 or ZERO2 - Black on Black.
Handlebar
Choice of Deda options. Other brands available on request.
Seat
Saddle
Choice of Fizik options. Other brands available on request.
Seatpost
MASON Penta carbon, microadjust.
Geometry
| Measurement | 48cm | 50cm | 52cm | 54cm | 56cm | 58cm | 60cm | 62cm |
|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.439 mm | 1.427 mm | 1.445 mm | 1.477 mm | 1.493 mm | 1.498 mm | 1.51 mm | 1.529 mm |
| Bottom Bracket Height | 263 mm | 263 mm | 263 mm | 264 mm | 264 mm | 264 mm | 266 mm | 266 mm |
| Front Center | 580 mm | 590 mm | 595 mm | 600 mm | 610 mm | 615 mm | 620 mm | 630 mm |
| Rake | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Trail | 69 mm | 66 mm | 66 mm | 66 mm | 66 mm | 63 mm | 63 mm | 60 mm |
| Stack | 532.1 mm | 543.3 mm | 552.8 mm | 565.5 mm | 579.7 mm | 591.1 mm | 599.1 mm | 620.1 mm |
| Reach | 369.7 mm | 380.6 mm | 382.5 mm | 383 mm | 388.3 mm | 394.7 mm | 396.8 mm | 405.5 mm |
| Top Tube Length | 519 mm | 532.8 mm | 537.4 mm | 551.5 mm | 561.1 mm | 581.3 mm | 586 mm | 601 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74.5 ° | 73.5 ° | 73.5 ° | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 480 mm | 500 mm | 520 mm | 540 mm | 560 mm | 580 mm | 600 mm | 620 mm |
| Head Tube Angle | 71 ° | 71.5 ° | 71.5 ° | 71.5 ° | 71.5 ° | 72 ° | 72 ° | 72.5 ° |
| Head Tube Length | 120 mm | 130 mm | 140 mm | 155 mm | 170 mm | 180 mm | 190 mm | 210 mm |
| Chainstay Length | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm |
| Wheelbase | 989 mm | 999 mm | 1004 mm | 1009 mm | 1019 mm | 1024 mm | 1030 mm | 1040 mm |
| Bottom Bracket Drop | 73 mm | 73 mm | 73 mm | 71 mm | 71 mm | 71 mm | 70 mm | 70 mm |
| Standover Height | 741 mm | 756 mm | 770 mm | 787 mm | 804 mm | 818 mm | 833 mm | 853 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 |




























































