Definition Integrale Shimano
The latest evolution of our unique MASON Definition, tailored to optimise speedy handling and clean cable-free lines
The aluminium MASON Definition is our Fast Far bicycle for multi-surface road riding. Improved and updated to keep it ahead of the pack, the new Definition Integrale offers an alternative to the Definition3, with shortened chainstays, a new fork, and fully integrated routing that conceals cables and hoses within the cockpit of your bicycle.
Optimised for electronic groupsets like Shimano Di2, our approach to integration has already transformed the titanium MASON Aspect. Now it’s time for the aluminium Definition to offer this streamlined, focussed Integrale option.
NEW – Definition Integrale
- Refined geometry for sportier handling
- Fully integrated routing
- Optimised for electronic shifting such as Shimano Di2
- MASON x Deda AR carbon fork
Alternatively, the MASON Definition3 offers the same Dedacciai aluminium performance as the Definition Integrale, but with conventional internal routing and other additional features.
50 Definition Integrale Launch Edition frames will be finished as shown, with individual numbering, special Launch Edition detailing and brass-finish head badge. Production models will feature a tungsten-finish headbadge and will not have individual numbers or Launch Edition decals.
Features
- Select from Shimano Dura-Ace Di2, Ultegra Di2, 105 Di2
- Custom Dedacciai aluminium frame, refined and reworked for performance riding
- Lower crown height and stack height than Definition3, giving a sportier position with a fast, attacking feel
- 2 new finishes: ProcessWhite and PrismGreen
- Carbon MASON Penta microadjust seatpost and MASON Macro seatclamp
- MASON 'ThruBB' internally routed bottom bracket shell
- Refined internal routing for seamless flow of cables and hoses through chainstays
- Max tyre clearance: 700C x 35mm [approx. 700C x 32mm with mudguards] – dependent on wheel/tyre combination
- Fully compatible with full-length mudguards
- MASON-designed UDH-ready dropouts
- Optimised for electronic shifting only
- 8 sizes for precise fit: 48 to 62cm
- Progressive geometry, keeping the handling confident, direct and comfortable across all sizes, in tune with rider height and build
- MASON x Deda AR tapered carbon fork, designed with Deda Elementi to bring full integration of hoses within a tapered head tube. Clearance for up to 35mm tyres, mudguard mounts, internal routing for hose and dynamo cable
Details
A DECADE OF DETAILS
With over 10 years of perfecting and optimising every detail in the MASON range, along with more than 25 years of metal frame design experience, we feel confident that all the features you'll ever need – along with some that you hadn't thought of – are lovingly and meticulously included in your frameset and finished bicycle.
We actively support some of the most experienced adventure and endurance riders, listen to our customers and work closely with experienced and passionate frame makers. Because of this rich mix, we are able to offer what we believe to be the most carefully designed, obsessively detailed and lovingly made framesets and bicycles in the world.
MASON MAKERS
BUILT WITH CARE AND ABSOLUTE ATTENTION TO DETAIL
We’re proud to collaborate with independent, bespoke frame makers who are at the pinnacle of their craft. This is something we care about a lot and we feel honoured to be working with small makers in Italy for most of our models, some who have been dedicated to the art of metal frame production for nearly 75 years.
Technical info
Select size
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 480 |
| B > | SEAT TUBE C/C | 433 |
| C > | BB DROP | 73 |
| D > | REAR CENTRE | 415 |
| E > | TT EFFECTIVE | 521 |
| F > | TT ACTUAL | 506 |
| G > | STACK | 520 |
| H > | REACH | 375 |
| I > | STAND-OVER | 723 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 71º |
| M > | HEAD TUBE LENGTH | 120 |
| N > | SEAT TUBE ANGLE | 74.5º |
| O > | WHEELBASE | 985 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 400/420 |
| Q > | FRONT CENTRE | 581 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 500 |
| B > | SEAT TUBE C/C | 453 |
| C > | BB DROP | 73 |
| D > | REAR CENTRE | 415 |
| E > | TT EFFECTIVE | 534 |
| F > | TT ACTUAL | 520.5 |
| G > | STACK | 531 |
| H > | REACH | 385 |
| I > | STAND-OVER | 742 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 71.5º |
| M > | HEAD TUBE LENGTH | 130 |
| N > | SEAT TUBE ANGLE | 74.5º |
| O > | WHEELBASE | 994 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 400/420 |
| Q > | FRONT CENTRE | 590 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 520 |
| B > | SEAT TUBE C/C | 474 |
| C > | BB DROP | 73 |
| D > | REAR CENTRE | 415 |
| E > | TT EFFECTIVE | 538.5 |
| F > | TT ACTUAL | 526.5 |
| G > | STACK | 540.5 |
| H > | REACH | 386.5 |
| I > | STAND-OVER | 758 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 71.5º |
| M > | HEAD TUBE LENGTH | 140 |
| N > | SEAT TUBE ANGLE | 74.5º |
| O > | WHEELBASE | 999 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 420 |
| Q > | FRONT CENTRE | 595 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 540 |
| B > | SEAT TUBE C/C | 494 |
| C > | BB DROP | 71.5 |
| D > | REAR CENTRE | 420 |
| E > | TT EFFECTIVE | 552 |
| F > | TT ACTUAL | 540.5 |
| G > | STACK | 553 |
| H > | REACH | 387 |
| I > | STAND-OVER | 778 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 71.5º |
| M > | HEAD TUBE LENGTH | 155 |
| N > | SEAT TUBE ANGLE | 73.5º |
| O > | WHEELBASE | 1009.5 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 440 |
| Q > | FRONT CENTRE | 600 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 560 |
| B > | SEAT TUBE C/C | 514 |
| C > | BB DROP | 71.5 |
| D > | REAR CENTRE | 420 |
| E > | TT EFFECTIVE | 562 |
| F > | TT ACTUAL | 551 |
| G > | STACK | 567.5 |
| H > | REACH | 392.5 |
| I > | STAND-OVER | 794 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 71.5º |
| M > | HEAD TUBE LENGTH | 170 |
| N > | SEAT TUBE ANGLE | 73.5º |
| O > | WHEELBASE | 1019.5 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 440 |
| Q > | FRONT CENTRE | 610 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 580 |
| B > | SEAT TUBE C/C | 534 |
| C > | BB DROP | 71.5 |
| D > | REAR CENTRE | 420 |
| E > | TT EFFECTIVE | 581.5 |
| F > | TT ACTUAL | 571.5 |
| G > | STACK | 579 |
| H > | REACH | 398.5 |
| I > | STAND-OVER | 808 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 72º |
| M > | HEAD TUBE LENGTH | 180 |
| N > | SEAT TUBE ANGLE | 72.5º |
| O > | WHEELBASE | 1024.5 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 460 |
| Q > | FRONT CENTRE | 615 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 600 |
| B > | SEAT TUBE C/C | 555 |
| C > | BB DROP | 70 |
| D > | REAR CENTRE | 420 |
| E > | TT EFFECTIVE | 586 |
| F > | TT ACTUAL | 579 |
| G > | STACK | 587 |
| H > | REACH | 401 |
| I > | STAND-OVER | 823 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 72º |
| M > | HEAD TUBE LENGTH | 190 |
| N > | SEAT TUBE ANGLE | 72.5º |
| O > | WHEELBASE | 1030 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 460 |
| Q > | FRONT CENTRE | 620 |
|
Dimensions (mm unless specified) |
||
|---|---|---|
| A > | SEAT TUBE C/T | 620 |
| B > | SEAT TUBE C/C | 575 |
| C > | BB DROP | 70 |
| D > | REAR CENTRE | 420 |
| E > | TT EFFECTIVE | 601 |
| F > | TT ACTUAL | 593.5 |
| G > | STACK | 607.5 |
| H > | REACH | 409.5 |
| I > | STAND-OVER | 846 |
| J > | OFFSET | 45 |
| K > | FORK CROWN HEIGHT | 367 |
| L > | HEAD ANGLE | 72.5º |
| M > | HEAD TUBE LENGTH | 210 |
| N > | SEAT TUBE ANGLE | 72.5º |
| O > | WHEELBASE | 1040 |
| P > | HANDLEBAR (OUTSIDE DIMENSION) | 460 |
| Q > | FRONT CENTRE | 630 |
This page gives you some guidelines based on rider height, but these are only a starting point for a proper bike fitting. There are of course many other factors to consider when choosing the right size for you and sizing advice will vary depending on your choice of model from the Mason range and the way that you intend to ride it. We're always here to help of course and would always recommend a professional bike fitting and visiting us for a ride on the Mason Cycles riverside gravel/country lanes test-loop if you can. There is further advice, based on specific models, below the height chart.
Fitting a bike to a rider is an important process, this information is a start to the process but it’s not really possible to give 100% accurate fitting instructions online.
Humans are odd shapes, each person’s physical dimensions: arm, torso, femur length, level of flexibility, skill level and intended model usage are very different. This means that there will invariably be different frame size requirements, even for people of the same height and inseam.
SIZING ADVICE BASED ON MASON MODELS
ROAD, ALL-ROAD & GRAVEL - Aspect | Resolution | Definition | SLR | BokehTi | Bokeh | Exposure: Size range is 48cm to 62cm depending on specific model. The chart dimensions show the extremes of useable frame size based on height and the rider size range is very similar for all our frames with 6 or 8 standard sizes.
ULTIMATE ADVENTURE - InSearchOf: Size range is 42cm to 58cm [5 sizes]. As a start point, we would recommend selecting one size down from your normal 'road' frame size. For example, if you would normally ride a 54cm then a 50cm InSearchOf is probably best for you.
ADVENTURE HARDTAIL - RAW | Macro: Size range is Sml to XL [4 sizes]. With the advent of modern, more progressive mountain bike geometry, the sizing process is even more fluid. The Mason RAW and Macro are no different: seat tube lengths are kept deliberately low so riders have a certain amount of flexibility in choosing size based on their preferred reach, wheelbase, handling characteristics and intended use. For instance, for high speed and loaded up stability you may prefer a larger frame that will also provide more pack space in the front triangle. Or, if you are spending most of your time on twisty woodland singletrack, you’d benefit from the shorter wheelbase and extra response of the smaller frame.
We are experienced in sizing and geometry, so of course we will be on the end of the phone or email to help and advise, but we would always recommend having a proper bike fit done before committing, especially if you feel like you may be between sizes. If you do fall between our frame sizes, it’s probably best to go with the smaller size. It’s easier to make a smaller frame fit a little larger than vice versa.
CONFIGURATION: With all models, you can use our drop down menus to configure your finishing kit to suit your needs, including which brake lever operates front/rear wheel and for MTB we’re happy to cut down the handlebar to your desired width.
Please email us here or call 01273 463000 if you have further requirements that you would like to discuss, we are always happy to help.
Specifications
Our frame sets deserve the best components, so we put a great deal of thought into the mix of parts used for each bike build. Bars, stem and crankset are sized to match frame size choice. See Geometry chart for component sizing.
| Frame | MASON x Dedacciai custom-shaped performance aluminium |
| Fork | MASON x Deda AR carbon fork |
| Headset | Select from Deda or Chris King |
| Colours | PrismGreen Metallic & ProcessWhite |
| Bike Weight | 8.2kg (SRAM RED 54cm XPLR, 50T Chainring & HUNT 60 Limitless wheels) |
| Sizes | 8 sizes: 48 / 50 / 52 / 54 / 56 / 58 / 60 / 62. |
| Shifting | Shimano 105 / Ultegra / Dura-Ace |
| Chainset | 50/34. Dura-Ace or 105 |
| Cassette | 11-34. 105 / Ultegra / Dura-Ace. Alternative ratios available on request. |
| Chain | Shimano 105 / Ultegra / Dura-Ace. Other options available on request. |
| Wheels | Select from HUNT / DT Swiss / Campagnolo. Other options available on request. |
| Tyres | 700c. Select from Rene Herse, Schwalbe, Continental, Vittoria. |
| Braking | Shimano 105 / Ultegra / Dura-Ace. Other options available on request. |
| Saddle | Choice of Fizik options. Other brands available on request. |
| Seatpost | MASON Penta carbon, microadjust |
| Clamp | MASON Macro alloy |
| Handlebar | Choice of Deda options. Other brands available on request |
| Bar Tape | MASON Contact Tape |
| Stem | Choose From: Deda Zero100 or Zero2 - black on black. |