Bokeh Rival XPLR £3,450.00

Size

Colour

  1. Element Grey
  2. Flare Orange
  3. Vela

Bokeh Rival XPLR

"Top performance, looks and capability from Mason's updated gravel bike...not all aluminium frames are designed with as much care and attention to detail as the Mason clearly is."

- road.cc

The Bokeh is our multi award winning, Italian crafted, custom tubed, premium Dedacciai aluminium framed 'AdventureSport' machines for fast ‘Continent Crushing’ rides and they can use either 650b x 50mm or 700c, with up to 45mm tyres. Many customers specify 2 sets of wheels, a quick swap dials the Bokeh perfectly to your chosen terrain or adventure. Use our 'Configure' tool to build your perfect Bokeh.

These hugely adaptable, spirited aluminium framesets are capable of being ridden fast on many surfaces and varied terrain, for a long way in as much comfort as possible. It’s a response to this move in cycling towards venturing off road and using bigger tyres, disc brakes and lightweight packs and having adventures, but not necessarily on bikes with masses of luggage.

Fitted with SRAM's Rival XPLR, this 12 speed groupset offers a raft of well-considered features that complement the Bokeh such as a dedicated eTap AXS rear mech for 10-44T cassettes, advanced clutched chain management, direct-mount cranksets, easy personalisation via the AXS app and hydraulic disc brakes to keep your momentum in check through all terrain conditions.

Features

  • Dedacciai, custom formed, triple-butted performance Aluminium frame with Mason Parallax2 full carbon Thru-Axle fork.
  • Can be upgraded with the Reverb XPLR AXS dropper seatpost.
  • SRAM Rival XPLR 10-44T cassette with 440% Range
  • The 'Parallax2' carbon monocoque fork uses a Ø12mm thru-axle, flat-mount and internally routed dynamo and brake hose porting, weighing just 465g.
  • Rival XPLR AXS Rear derailleur with wireless shifting and fluid-clutch mech.
  • Also available with Ritchey VentureMax WCS Flare 'bars in all sizes.
  • Available with HUNT disc wheelsets in 650B and 700C sizes.
  • Unique Mason MultiPort adaptable internal routing.
  • Mason 'ThruBB' 56Ømm, internally routed bottom bracket shell.
  • Available with a huge choice of 650B and 700C tyres from Panaracer, WTB, Rene Herse and Schwalbe.
  • This bike can be fitted with the Mason Luminance Upgrade. The ultimate dynamo + lighting set-up for all-terrain and multi-surface adventures. See 'Accessories + Upgrades' for details.

Details

Bicycle shown is upgraded with optional Reverb XPLR dropper seatpost.

Technical info

Select size
 

Dimensions
(mm unless specified)
A > SEAT TUBE C/T 480
B > SEAT TUBE C/C 43.29
C > BB DROP 73
D > REAR CENTRE 420
E > TT EFFECTIVE 519
F > TT ACTUAL 502.3
G > STACK 532.1
H > REACH 369.7
I > STAND-OVER 741.4
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
69.5
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71
N > HEAD TUBE LENGTH 120
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 989
Q > HANDLEBAR (OUTSIDE DIMENSION) 40/42
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 500
B > SEAT TUBE C/C 452.7
C > BB DROP 73
D > REAR CENTRE 420
E > TT EFFECTIVE 532.8
F > TT ACTUAL 516.8
G > STACK 543.3
H > REACH 380.6
I > STAND-OVER 756.5
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5º
N > HEAD TUBE LENGTH 130
O > SEAT TUBE ANGLE 74.5º
P > WHEELBASE 999.1
Q > HANDLEBAR (OUTSIDE DIMENSION) 40/42
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 520
B > SEAT TUBE C/C 473.0
C > BB DROP 73
D > REAR CENTRE 420
E > TT EFFECTIVE 537.4
F > TT ACTUAL 522.7
G > STACK 552.8
H > REACH 382.5
I > STAND-OVER 770.8
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5º
N > HEAD TUBE LENGTH 140
O > SEAT TUBE ANGLE 74.5º
P > WHEELBASE 1004.1
Q > HANDLEBAR (OUTSIDE DIMENSION) 42
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 540
B > SEAT TUBE C/C 493.5
C > BB DROP 71.5
D > REAR CENTRE 420
E > TT EFFECTIVE 551.5
F > TT ACTUAL 536.3
G > STACK 565.5
H > REACH 383.0
I > STAND-OVER 787.3
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5º
N > HEAD TUBE LENGTH 155
O > SEAT TUBE ANGLE 73.5º
P > WHEELBASE 1009.6
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 560
B > SEAT TUBE C/C 513.6
C > BB DROP 71.5
D > REAR CENTRE 420
E > TT EFFECTIVE 561.1
F > TT ACTUAL 546.7
G > STACK 579.7
H > REACH 388.3
I > STAND-OVER 804
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5º
N > HEAD TUBE LENGTH 170
O > SEAT TUBE ANGLE 73.5º
P > WHEELBASE 1019.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 580
B > SEAT TUBE C/C 534.1
C > BB DROP 71.5
D > REAR CENTRE 420
E > TT EFFECTIVE 581.3
F > TT ACTUAL 566.9
G > STACK 591.1
H > REACH 394.7
I > STAND-OVER 818.1
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
63.2
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 72º
N > HEAD TUBE LENGTH 180
O > SEAT TUBE ANGLE 72.5º
P > WHEELBASE 1024.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 46
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 600
B > SEAT TUBE C/C 554.0
C > BB DROP 70
D > REAR CENTRE 420
E > TT EFFECTIVE 586
F > TT ACTUAL 574.3
G > STACK 599.1
H > REACH 396.8
I > STAND-OVER 833.1
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
63.2
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 72º
N > HEAD TUBE LENGTH 190
O > SEAT TUBE ANGLE 72.5º
P > WHEELBASE 1030.2
Q > HANDLEBAR (OUTSIDE DIMENSION) 46
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 620
B > SEAT TUBE C/C 574.3
C > BB DROP 70
D > REAR CENTRE 420
E > TT EFFECTIVE 601
F > TT ACTUAL 588.8
G > STACK 620.1
H > REACH 405.5
I > STAND-OVER 853.2
J > OFFSET 45
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
60
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 72.5
N > HEAD TUBE LENGTH 210
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1040.2
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.

Sizing 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.

 

EN Tested

All our frames and forks complete the brutal strength and fatigue testing to comply fully with EN regulations. They are pushed, pulled, dropped and twisted over 100,000 times and must survive without any damage before they can pass.

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.

Multiport

Unique to MASON. 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 are the first to bring this type of system to a performance steel frame. Interchangeable alloy parts allow five options:

1. Full cable outer. 2. Hydraulic Hose. 3. Split outer. 4. Electronic cable [e.g. Shimano Di2]. 5. 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.

ThruBB

'ThruBB' is unique to MASON. The large 56mmØ presents a large weld area to the base of the down tube and then steps down to the 68mm width threaded seats. This step-down provides plenty of space around the outside of the bottom-bracket bearings to allow the control cable and hose to pass through on the way to the chain stays and out to the brake and rear mech.

IMPORTANT: This BB shell design requires the use of a bottom bracket with a 24mm or 30mm 'sleeved' axle like most Shimano or SRAM DUB, because the hose/cables run through the shell and under the axle. DO NOT use a bottom bracket type without a sleeve. Campagnolo sleeves are available on the site HERE. Please contact us if you would like advice on compataible cranksets/BB types.

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: Bokeh

The Mason F-Stop Axle System was developed for our exclusive Aperture2 fork and we now use the special axle for the Mason Parallax fork on the Bokeh and BokehTi.
The axle uses a positive-closure release lever, ensuring that the wheel is always securely and firmly mounted with the added advantage of a visual check for the lever closure and orientation.

The F-Stop system also includes a ‘clockable’ thread on the axle, meaning you can always position the release lever exactly where you want it.

Dedacciai Tubing

This frame is constructed from Triple Butted, Hand Selected, custom shaped, 7000 series, Dedacciai Alu tubes and tig welded by hand with beautiful Smooth weld beads. The welds require no after sanding or finishing, so there is no thinning and weakening of the tubes at crucial areas. The frame is fully heat treated and stress relieved after welding.

27.2 Seat Post

Our oversize seat tubes don't house oversize seat posts. The large diameter seat tube helps the 'core-stability' of the frame but large, stiff seat posts don't help rider comfort. A 27.2mm post helps to dial out road-buzz and the smoother ride means you stay fresher for longer.

Internal Routing

The cables, hoses and electronic shift control wires run through the frame tubes, 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.

1x Drivetrain

'1x' is a multi-terrain performance drivetrain with maximum chain security thanks to the narrow-wide chainring and jockey wheels and 'clutched' rear-mech. The range of gears is equivalent to a 2x compact drivetrain, but with the elimination of doubled-up crossover gears. '1x' are lighter, quieter, and more secure.

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.

 

DForm Downtube

Our Resolution frame uses a special 'D-Section', Columbus Spirit, down tube. We also worked with Dedacciai to design and tool for the exclusive Mason ‘DForm’ Ti down tube for the BokehTi. 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.

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.

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 custom-shaped performance Aluminium.
Fork Mason Parallax2 full carbon Thru-Axle fork.
Headset DEDA Low profile integrated headset.
Colours ElementGrey. FlareOrange. Vela
Bike Weight 54cm 8.9kg.
Sizes 48, 50, 52, 54, 56, 58, 60, 62.
Shifting SRAM Rival XPLR AXS
Chainset SRAM Rival 1X XPLR 42T.
Cassette SRAM Rival XG-1251 10-44T.
Chain SRAM Rival D1 12spd.
Braking SRAM Rival AXS
Tyres Choice of Schwalbe, Panaracer, WTB.
Wheels HUNT Four Season Gravel Disc X-Wide / Mason X HUNT 650B AdventureSport Disc. Other models available.
Handlebar Deda Gravel100
Clamp MASON Macro alloy ultralight.
Seatpost MASON Penta carbon, microadjust.
Saddle Fizik Terra Argo X5.
Bar Tape Mason Bar Tape.
Stem Deda Zero1