Your BokehTi Frameset
THE LATEST EVOLUTION OF OUR UNIQUE MASON BOKEHTi FRAMESET
A world-leading, finely finished, titanium AdventureSport frameset. Welded and finished by a long-established, highly experienced maker in Tuscany Italy. Cutting-edge features like 3D-printed titanium Thru-axle/Flat-mount dropouts make this one of the most exclusive and advanced titanium frames available. The BokehTi is welded in small batches and is available on a pre-order basis only.
We have developed an entire new Ti tube set working with Dedacciai and Reynolds UK and the BokehTi uses the incredible Reynolds 3D printed Ti dropouts. Tuscany-made craftsmanship, super-high finish quality, our Mason Parallax2 carbon fork, with capacity for 650b x 55mm or 700c x 45mm, the BokehTi is your versatile friend for fast adventure and fun-filled bikepacking trips. Highly customisable build levels make the limited production Mason BokehTi a very special companion indeed.
For the BokehTi 2.0, we have chosen to keep all the character and capability, whilst enhancing its smooth, fast, ground covering nature. Updated with T47, internal routing through the BB and cleanly out through the chain stays, along with dedicated dynamo routing through the top tube, the routing is now very clean and practical.
MASON CUSTOM PROGRAMME
Individual Inspriring Bicycles are what we do. All our Mason models are as close to ‘custom’ as you can get with their bespoke tubing design and carefully designed build levels.
Whilst your frame is being welded and carefully finished you also have the chance to specify a full ‘Mason Custom Build’, basing your finished bicycle on a choice of components from our various carefully chosen suppliers. Please contact us for further information on this process and to start your dream build.
Each frame is welded to order: This is a highly refined and small volume product, so we make to pre-order only by taking a 50% deposit for the frameset. We can make certain detail alterations to the frame features and geometry and we can discuss these as part of the ordering process. Please contact us to get the process started. We refine your bike build whilst the frame is being built and finely finished, we then carefully assemble each bike at our Mason Cycles Workshop.
Features
- Revised and refined internal routing for brake hoses and gear cables through the BB shell, exiting via the chainstays.
- Revised and refined clearance for 650b x 55 [2.1”] or 700c x 45 wheel/tyre sizes.
- Revised and refined dedicated internal dynamo routing through top tube and fork. Light-mount on fork crown.
- MasonXDedacciai, custom formed & shaped, Titanium 3AL-2.5V frame with Mason Parallax2 full carbon Thru-axle/Flat-mount fork.
- MASON Parallax2 carbon monocoque fork, developed in conjunction with our Italian frame builders, it uses a Ø12mm thru-axle, flat-mount and internally routed dynamo and brake hose porting, weighing just 465g.
- Dedicated internal dynamo routing through top tube and fork. Light-mount on fork crown.
- Fully and discretely eyeletted, with clearance for full mudguards and large volume tyres. Dedicated rack-mounts.
- Mason 'ThruBB' 56Ømm, internally routed bottom bracket shell.
- Full set of high-grade, stainless steel accessory mounting screws and small parts, including cable routing parts and MASON Multiport inserts, supplied with frameset.
Details
A DECADE OF DETAILS
With 10 years of perfecting & optimising every detail in our MASON range, along with over 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.
Hose & cable internal routing ports
Standard Routing with Dynamo: Suitable for any groupset, mechanical or electronic. Includes two reinforced ports for a rear dynamo cable through the top tube. Unused Multiports can be filled with blanks (e.g., Shimano Di2 or SRAM AXS groupsets).
Shimano Di2 Dedicated Routing: Accommodates a rear brake cable and additional ports for Di2 cables via chainstay and seat tube. Recommended for electronic routing, supporting Shimano Di2, SRAM AXS, or Campagnolo EPS. Optional dynamo routing via the top tube.
SRAM AXS Dedicated Routing: Suitable for SRAM AXS wireless groupsets only. Features ports for a brake hose, with no additional Multiports. Optional dynamo routing via the top tube.
Brake Setup
Specify your brake cable setup: This affects the MultiPort location for the rear brake hose. The Multiport can be located on either side of the down tube and depends on European/US or UK brake setup.
Eyelets
Rack eyelets: Rack eyelets are not a standard option and will need to be selected. Most Mason riders use systems like Tailfin, which don't require frame-mounted eyelets resulting in a cleaner overall finish.
Bottle and accessory eyelets: The Aspect has one set of bottle eyelets on the down tube and one set on the seat tube. There is an option to omit any of these eyelets.
Fender eyelets: Fender eyelets will be included as standard, but you can specify your frame without. These discreet eyelets are located at the seatstay bridge and inside the seatstays. If you have no plans to use a mudguard/fender these can be omitted. Mudguard/fender mounts on our forks are always included as standard.
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
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 480 |
B > | SEAT TUBE C/C | 432.2 |
C > | BB DROP | 77 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 515.9 |
F > | TT ACTUAL | 497.8 |
G > | STACK | 536.1 |
H > | REACH | 359.9 |
I > | STAND-OVER | 741 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
74.7 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 69.5 |
N > | HEAD TUBE LENGTH | 100 |
O > | SEAT TUBE ANGLE | 74 |
P > | WHEELBASE | 1013 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 40 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 500 |
B > | SEAT TUBE C/C | 453 |
C > | BB DROP | 75 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 519.9 |
F > | TT ACTUAL | 503.9 |
G > | STACK | 537.9 |
H > | REACH | 363.5 |
I > | STAND-OVER | 764.1 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
75.3 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 70 |
N > | HEAD TUBE LENGTH | 115 |
O > | SEAT TUBE ANGLE | 74 |
P > | WHEELBASE | 1013.7 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 42 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 520 |
B > | SEAT TUBE C/C | 473.0 |
C > | BB DROP | 75 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 535.9 |
F > | TT ACTUAL | 520.3 |
G > | STACK | 554 |
H > | REACH | 374.0 |
I > | STAND-OVER | 781.8 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
72.0 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 70.5 |
N > | HEAD TUBE LENGTH | 130 |
O > | SEAT TUBE ANGLE | 74 |
P > | WHEELBASE | 1021.8 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 42 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 540 |
B > | SEAT TUBE C/C | 493.5 |
C > | BB DROP | 73 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 551 |
F > | TT ACTUAL | 534.4 |
G > | STACK | 568.1 |
H > | REACH | 376.2 |
I > | STAND-OVER | 799.4 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
68.7 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 71.0 |
N > | HEAD TUBE LENGTH | 145 |
O > | SEAT TUBE ANGLE | 73 |
P > | WHEELBASE | 1028.4 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 44 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 560 |
B > | SEAT TUBE C/C | 513.7 |
C > | BB DROP | 73 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 561.4 |
F > | TT ACTUAL | 546.3 |
G > | STACK | 579.5 |
H > | REACH | 383.4 |
I > | STAND-OVER | 814.8 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
65.4 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 71.5 |
N > | HEAD TUBE LENGTH | 155 |
O > | SEAT TUBE ANGLE | 73 |
P > | WHEELBASE | 1034.4 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 44 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 580 |
B > | SEAT TUBE C/C | 534.1 |
C > | BB DROP | 70 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 580.8 |
F > | TT ACTUAL | 567.2 |
G > | STACK | 587.9 |
H > | REACH | 395.2 |
I > | STAND-OVER | 831.0 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
62.1 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 72 |
N > | HEAD TUBE LENGTH | 165 |
O > | SEAT TUBE ANGLE | 72.5 |
P > | WHEELBASE | 1045.4 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 46 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 60 |
B > | SEAT TUBE C/C | 554.2 |
C > | BB DROP | 70 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 590.7 |
F > | TT ACTUAL | 577.1 |
G > | STACK | 607.0 |
H > | REACH | 399.1 |
I > | STAND-OVER | 850.0 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
62.1 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 72 |
N > | HEAD TUBE LENGTH | 185 |
O > | SEAT TUBE ANGLE | 72.5 |
P > | WHEELBASE | 1055.4 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 46 |
(mm unless specified) |
Dimensions ||
---|---|---|
A > | SEAT TUBE C/T | 620 |
B > | SEAT TUBE C/C | 574.7 |
C > | BB DROP | 70.0 |
D > | REAR CENTRE | 435 |
E > | TT EFFECTIVE | 600.5 |
F > | TT ACTUAL | 585.8 |
G > | STACK | 630.7 |
H > | REACH | 401.4 |
I > | STAND-OVER | 871.7 |
J > | OFFSET | 50 |
K > | TRAIL Trail data for more wheel/tyres in full geo. chart (where applicable) |
62.1 |
L > | FORK CROWN HEIGHT | 398 |
M > | HEAD ANGLE | 72 |
N > | HEAD TUBE LENGTH | 210 |
O > | SEAT TUBE ANGLE | 72.5 |
P > | WHEELBASE | 1065.5 |
Q > | HANDLEBAR (OUTSIDE DIMENSION) | 46 |
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.
MTB, TRAIL/TRAVEL - RAW: 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 is 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.
InBoard Disc-Mount
The calliper is mounted on the chain stay, this allows us to use lighter more comfortable seat-stays and gives a flex free mounting for the post-mount components to be welded to. Mounting the brake on the chain stay also keeps it cleanly out of the way of rack and ‘guard stays.
Multiport
Our frames use an adaptable, internal cable routing system. Developed by us to allow your Mason frame to be used with a combination of control systems and adapt and evolve with your requirements and riding styles. We were the first to bring this type of system to a performance steel frame and now use this system across our range. Interchangeable alloy parts allow five options:
1. Full cable outer. 2. Hydraulic Hose. 3. Split outer. 4. Electronic cable [e.g. Shimano Di2]. 5. 2 x Hose/cable or Hose/Dynamo wire 6. Blank.
Taper Head Tubes
Our frames use modern 1-1/8” - 1.5” taper head tubes. Pioneered by composite frames, the taper head tube makes huge sense for metal frames too;
The large overall diameter provides a useful weld area. The fully integrated headset is light and has a very low stack-height. Large 1.5” lower bearing, mated to a tapered carbon fork steerer, spreads the load and gives flex-free braking and instant response to steering input.
Threaded Bottom Brackets
We choose a more traditional 68mm, BSA, threaded standard for our AdventureSport frames because we believe it gives greater durability and creak-free reliability over many miles. The threaded BB is easier to service using standard tools and you are more likely to find a replacement when adventuring far from home. A properly lubricated, threaded BB is also an ideal interface with a metal BB shell.
BoatTail Stays
Unique to MASON. The seat stays flow out of the ovalised top tube and then curve and taper down to meet the chain stays which curve up towards the axle. We call this ‘BoatTail’, a custom bend giving disc-rotor and calliper clearance, helping to avoid chain-slap on the rough stuff and allowing a little compliance to help smooth the ride.
F-Stop Axle System
The Mason F-Stop Insert System was developed for our exclusive Aperture2 and RangeFinder forks, used on our Definition, Resolution, Aspect, Exposure and SLR bicycles.
The axle uses our 12mm Thru-Axle 'SwitchLever' which features a removable CNCd lever key, fitted with a 6mm hex key. You can leave the key in and it's there for easy wheel removal, or take it off and leave it in your pocket for a clean dropout.
The Aperture2 and Rangefinder forks also feature removable tip inserts meaning that all wearing parts are replaceable, vastly extending the life of your Mason bicycle.
Internal Routing
We route the hoses and cables internally where practical, keeping the 'adventure nature' of our bicycles firmly in mind. For smoother runs and a cleaner aesthetic, all control cables, hoses and electronic shift control wires now run through the down tube, via the special BB shell and out through the chainstays, guided by our Mason 'MultiPort' adaptable inserts. Interchangeable Internal routing keeps the control cabling away from road dirt and grime, helps avoid accidental damage, makes cleaning easy, de-clutters your bike and means you can adapt your bike easily to work with various shifting and braking methods. For adventure and endurance riding, internal routing also has the advantage that it is easy to strap frame packs to the frame tubes without being hindered by external cabling and hoses.
Integrated Headset
Integrated, 41.8ø upper, 51.8ø lower, for taper head tube. Both bearings are ‘ACB’, meaning ‘Angular Contact Bearings’. The head-tube seat angle is 45º.
The headset drops into a tapered seat in the head tube and is tensioned using a headset tensioner within the fork steerer. Tensioning the headset centres it on the taper and prevents any play. The larger lower bearing allows a tapered steerer and larger crown. This gives sharper response, helps reduce flex under braking and spreads bearing load.
ISO Testing
All our frames complete the intensive strength and fatigue testing to fully comply with ISO standards. The AdventureSport range of frames are put through the tough road race ISO testing, with its brutal Horizontal Fatigue test. The Parallax fork goes through the MTB test with its even tougher 'Drop Testing' standards. Because of this we are confident that these frames will last you a lifetime of hard riding.
It's not law that frames and forks have to be tested to their limits like this, but our frames will always be tested in this way, so you can be sure that your MASON frame not only looks beautiful with a ride quality to match, but it is tough, safe and dependable too.
650B/700C
The Bokeh and Exposure are optimised for large-volume treaded tyres, and are designed for 650B and 700C wheel sizes. Using the smaller 650B wheel means that you can fit a larger-volume treaded tyre for off-road applications, or use a 700C wheel with a tyre of less volume, but with the same rolling radius, when prioritising rolling speed.
We've worked together with HUNT Bike Wheels to develop the tubeless-ready, extra-wide, 650B 'AdventureSport' wheelset: replaceable cartridge bearings; traditional J-bend spokes; easy strip down of the hub system requiring traditional tools only.
Bottle #3
A third bottle cage mount at the base of the down-tube to allow for an additional bottle or tool keg to be fitted. The third bosses are positioned close to the BB to maximise tyre clearance and keep the centre of gravity low.
FlatMount Brake Calipers
Flat mount disc-brake callipers are lighter, neater, and open up more space within the dropout area for racks and ‘guards. The calliper is mounted to the dropout, allowing us to use a lighter, more comfortable seat-stay. Up front, the calliper is mounted directly to the fork [via the brake manufacturers adaptor] and offers a cleaner and more minimalist appearance and also provides a compact packaging of the brake caliper.
D-Form Downtube
The DForm down tube is designed by us and tooled exclusively for MASON by Dedacciai in Italy. It is not a simple ‘D’ section and varies in shape from being taller/narrower at the head tube to being wider and lower in section where it meets the BB shell. This shape allows a very wide weld where the tube meets the BB, giving it great stability and ensuring that the weld doesn’t excessively overlap onto the base of the seat tube.
Structural FInish
Re-Machinable Bearing Seats
QuadSlot Seat Tube
3D-Printed Ti Dropouts
We were heavily involved in the development of the highly advanced Reynolds UK, 3D printed Titanium, thru-axle/flat-mount dropouts that we use for the BokehTi. The dropouts are extremely precise and lightweight and provide highly accurate and stiff axle retention. The interior is a highly complex structure, only made possible by using this advanced 3D ‘Additive Manufacturing’ process, internal ribs, gussets and guides deal with riding forces and guide internally routed electronic-shifting cables. Alongside the dropouts, we worked with Reynolds to create beautiful new double-bend and tapered titanium chain stays. The stays mate perfectly with the dropouts and combine to give us the huge tyre clearance and smooth propulsion that we require.
For you this means perfect alignment and extremely efficient power transfer, helping to give the BokehTi it’s incredible ride quality and ultra-distance, terrain conquering mastery.
Thru-Axle Front & Rear
31.6 Seat Post
Dedacciai Ti Tubing
The BokehTi uses a full compliment of custom 3AL-2.5V/GR9 seamless tubing. Every tube is designed or shaped specifically for Mason and specially for the BokehTi, nothing is ‘Off the shelf’. Dedacciai tooled up for our special ‘Dform’ down tube and all other tubes have bends and profiles developed between Mason, Dedacciai and our frame maker in Italy. THIS is the key to the superb, ‘grin inducing’ ride of these award winning bikes.
The BokehTi possesses the spirit and soul of the Bokeh Alu, it retains its sorted geometry and incredible lively, engaging feel but with added tautness and smooth propulsion provided by a modern, full custom Titanium tubeset.
Switchlever
This model uses SwitchLever Thru-Axles front and rear. This high quality axle system features a removable lever to be used with both axles. Store the lever in the front axle for quick use or remove completely for extra security and a clean, low-profile look.
Parallax2 Thru-Axle Fork
Unique to MASON. This frame is fitted with our ‘Parallax2’ 465g, Ø12mm thru-axle/flat-mount, monocoque carbon fork. We develop our own custom tubing and wheels, so when it comes to the forks for our bicycles it makes total sense for us to design and tool up for our own fork too. We don’t want to compromise ride-feel, balance and performance by using an ‘off-the-shelf’ and generic product.
Features: Custom layup UD carbon construction, Mason F-Stop axle with clockable axle, allowing you to re-position the release lever as things bed in. TrueTaper steerer, sealed Internal Routed brake & dynamo routing, dynamo light eyelet on crown, triple-boss eyelets on both fork legs, discrete eyelets for mudguard mounting. Huge clearance with full mudguard clearance even when using the largest tyres.
Recommended tyre sizing: 700c x 40mm [45mm Max.] 650b x 50mm/2” [2.1” Max.]
Essental Dimensions: Bokeh
BRAKING
Rotor Size: The fork can take a 140 or 160mm rotor [using adaptor]. We recommend no smaller than 160mm up front if you are using cable braking. 160mm is the maximum recommended diameter for the rear and the native rotor size is 140mm.
Calliper Type: These frames are designed for flat-mount calipers. It's possible to fit post-mount calipers front and rear with the use of a flat > post-mount adapter.
Bokeh Flat-Mount Mounting Bolt Lengths: FRONT - 15mm. REAR - SRAM: 22mm. Shimano: 28mm.
BokehTi Flat-Mount Mounting Bolt Lengths: FRONT - 15mm. REAR - SRAM: 27mm. Shimano: 33mm.
Bolt lengths for mounting Flat-Mount brake calipers to our frames vary because of the different dropout designs and materials used across our range.
We always recommend using genuine hardware and consulting us directly using the 'Technical' dropdown, or using a qualified cycle mechanic if in doubt.
NOTE: This frame is compatible with most modern disc-brake systems but may not be suitable for ALL brake callipers. Please check clearance before purchasing your braking system.
CHAINRING SIZES
Max 1x chainring size: 42T.
Max 2x chainring size: 31/48T.
WHEELS + AXLE SPACING
Ø12mm Thru-axle Front / Ø12mm Thru-axle rear.
Front axle spacing: 100mm. Rear axle spacing: 142mm.
Axle length/pitch: Bokeh: Front - 120mm/1.5P. Rear - 160mm/1.5P. BokehTi: Front - 120mm/1.5P. Rear - 172mm/1.5P.
TYRES
The below are guides only. Fitted width may vary depending on manufacturer and rim width. Please check true dimensions of chosen components to be sure.
Bokeh:
Max tyre widths with 'guards:
700C x 41mm | 650B x 50mm.
Max tyre widths without 'guards:
700C x 45mm | 650B x 52mm.
SEAT POST
Bokeh: 27.2mm. BokehTi: 31.6mm.
SEAT CLAMP
Bokeh: 31.8mm. BokehTi: 34.9mm.
FRONT MECH
Bokeh: 31.8mm. 62cm: 34.9mm. BokehTi: 34.9mm.
BB TYPE
68mm shell width. BSA threaded.
PARALLAX2 FORK
Headset type: Integrated, 41.8Ø upper, 51.8Ø lower, for taper head tube. Angular Contact Bearings. The head-tube seat angle is 45º.
Stack-washer maximum: 40mm below stem is max. recommended for carbon steerer. Warranty is void above this dimension.
Dimensions: Crown height - 398mm. Offset - 50mm.
Mounting Bolt Torque: 4Nm.
Accessory Cages: Max load capacity 3kg per side. Follow manufacturers installation and loading instructions.
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 | Dedacciai Titanium, exclusive custom-formed Mason designed Titanium tubeset. Thru-axle/Flat-mount. |
Fork | Mason Parallax, UD carbon Thru-Axle/Flat-mount fork. |
Headset | DEDA Low profile, carbon top cover, integrated headset. |
Frame Weight | 1750g (52cm) |
Sizes | 50, 52, 54, 56, 58, 60. [Head Tube dimension can be altered on request, as part of pre-order process]. |
Seatpost | MASON Penta carbon, microadjust. |