SLR Force AXS £5,200.00

Size

Colour

  1. Mode Red
  2. ShutterBlack

SLR Force AXS

The new MASON SLR steel bicycle is the result of our focus on ride quality, long-distance performance, and luxury grand-touring capabilities. A new chapter in Mason Cycles’ obsession with high performance steel, designed in collaboration with one of the most skilled and established bicycle frame builders in Italy - Cicli Barco.

Modern wireless gearing, advanced chain management, and easy personalization — in a lightweight performance package. This highly refined, fully wireless transmission highlights the SLR's exclusive Dedacciai steel tubeset. The newly developed 'Orbit' chain management system utilises a fluid clutch system to reduce chain slap and noise to a minimum, keeping it totally secure across any road surface. Its self-adjusting derailleurs trim automatically so eliminating cage rub and making sure you are running at the most efficient at all times. Shifting is almost effortless which pays big dividends when taking on long adventures and ultra-endurance rides.

Wireless gear shift systems eliminate the remove the risk of a gear cable breaking or a wire failing, and the complete lack of any external wiring makes the bike extremely easy to clean, there is nothing to snag and combined with the internal brake-hose routing means there is nothing to hinder the fitting of frame bags and packs.

Features

  • 100% Italian TIG-welded/silver-brazed frame manufacturing, wet-painting, and finishing.
  • European-made, exclusively custom shaped and formed, phosphate anti-corrosion treated Dedacciai Zero/Zero Uno tube set.
  • RangeFinder AR carbon fork which is custom-tuned for the SLR. Features pannier & ‘rando’ style rack mounts, Ø12mm Thru-axle, flat-mount, and 700 X 45mm tyre clearance.
  • Fully internal routing allows ease of fitting straps for mounting frame bags, keeps hoses, wires and control cables safe from damage and allows for easy cleaning.
  • Modern 1-1/8” - 1.5” tapered Dedacciai Zero Uno head tube with integrated Deda head set.
  • Dedacciai Zero Uno seat tube with flush-fitting alloy reduction sleeve for 27.2mm seat post.
  • Clearance for 700C x 40mm tyres AND fenders.
  • Discrete internal dynamo-light routing in top-tube with stainless-steel port reinforcement as standard.
  • Chain pip neatly holds the chain and retains it on the chainring whilst the wheel is removed for transport.
  • Proprietary 48/35 Force 12speed chainset
  • 'Orbit' Fluid Clutch chain management technology keeps drivetrain totally secure and silent.
  • Force AXS 12spd: The essential features of etap AXS—modern wireless gearing, advanced chain management, and easy personalization—in a more affordable package.

Details

Technical info

Select size
 

Dimensions
(mm unless specified)
A > SEAT TUBE C/T 480
B > SEAT TUBE C/C 432
C > BB DROP 75
D > REAR CENTRE 430
E > TT EFFECTIVE 516.5
F > TT ACTUAL 498.3
G > STACK 555.0
H > REACH 360.0
I > STAND-OVER 738.5 [700 x 35]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
73.8 [700 x 35]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 70.0
N > HEAD TUBE LENGTH 130
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 1011.3
Q > HANDLEBAR (OUTSIDE DIMENSION) 40
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 500
B > SEAT TUBE C/C 452.1
C > BB DROP 75
D > REAR CENTRE 430
E > TT EFFECTIVE 524.1
F > TT ACTUAL 506.4
G > STACK 564.4
H > REACH 365.0
I > STAND-OVER 758.8 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
74.9 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 70.0
N > HEAD TUBE LENGTH 140
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 1019.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 40
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 520
B > SEAT TUBE C/C 472.5
C > BB DROP 75
D > REAR CENTRE 430
E > TT EFFECTIVE 535.1
F > TT ACTUAL 518.0
G > STACK 575.8
H > REACH 373.1
I > STAND-OVER 778.2 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
71.6 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 70.5
N > HEAD TUBE LENGTH 150
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 1026.9
Q > HANDLEBAR (OUTSIDE DIMENSION) 42
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 540
B > SEAT TUBE C/C 492.9
C > BB DROP 73
D > REAR CENTRE 430
E > TT EFFECTIVE 550.3
F > TT ACTUAL 532.0
G > STACK 588.0
H > REACH 374.3
I > STAND-OVER 795.3 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
71.6 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 70.5
N > HEAD TUBE LENGTH 165
O > SEAT TUBE ANGLE 73.5
P > WHEELBASE 1033.5
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 560
B > SEAT TUBE C/C 513.1
C > BB DROP 73
D > REAR CENTRE 430
E > TT EFFECTIVE 558.2
F > TT ACTUAL 540.5
G > STACK 602.2
H > REACH 378.0
I > STAND-OVER 811.8 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
71.6 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 70.5
N > HEAD TUBE LENGTH 180
O > SEAT TUBE ANGLE 73.5
P > WHEELBASE 1042.2
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 580
B > SEAT TUBE C/C 533.5
C > BB DROP 73
D > REAR CENTRE 430
E > TT EFFECTIVE 579.4
F > TT ACTUAL 561.1
G > STACK 613.6
H > REACH 385.0
I > STAND-OVER 827.1 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
68.3 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 71.0
N > HEAD TUBE LENGTH 190
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1047.8
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 430
E > TT EFFECTIVE 597.2
F > TT ACTUAL 581.0
G > STACK 622.2
H > REACH 400.4
I > STAND-OVER 845.3 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
65.1 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 200
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1062.1
Q > HANDLEBAR (OUTSIDE DIMENSION) 46
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 620
B > SEAT TUBE C/C 573.9
C > BB DROP 70
D > REAR CENTRE 430
E > TT EFFECTIVE 607.8
F > TT ACTUAL 591.5
G > STACK 641.1
H > REACH 405.0
I > STAND-OVER 866.8 [700 x 38]
J > OFFSET 50
K > TRAIL
Trail data for more wheel/tyres in full geo. chart (where applicable)
5.1 [700 x 38]
L > FORK CROWN HEIGHT 398
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 220
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1073.1
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.

 

CUSTOM MASON X DEDACCIAI TUBING

Almost the entire tubeset was developed in conjunction with Italian tube gurus Dedacciai, using their new 'ZERO/ZERO UNO', fine grain, micro-alloyed, progressive butted steel tubing. We work very closely with them to develop our model-specific Alu, Ti and steel tubesets for Bokeh, BokehTi, Definition, ISO, RAW, Exposure and SLR. Read more about the tubing design in THINKING.

Mason X Barco

MASON is renowned for designing and producing award-winning bicycle frames in conjunction with the world’s finest frame builders, drawing on their expertise to create a finely tuned bicycle from both manufacturing and riding perspectives. This model is fabricated in Italy by our friends at Cicli Barco. Like MASON, they are a family business and are amongst the most highly skilled frame fabricators in the world, renowned in the global frame building industry. What has brought us together with Cicli Barco is their highly personal approach to frame building and business, backed up by perfect fabrication.

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.

Hourglass Stays

We tried many shapes before settling on this one, the wall thickness tapers from top to base and the perfect ‘hourglass’ profile gives a sublime, smooth ride with the added spring of steel keeping things lively. We add a custom bend at the base to work with the disc-rotor and calliper.

F-Stop Axle System

The Mason F-Stop Insert System was developed for our exclusive Aperture2 fork, 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.

Disc Brakes

This frame is designed for disc brakes. They work consistently in all conditions, pull up quicker in the wet, they don't grind your expensive rims into black sludge and in my experience they change the whole riding experience for the better, especially when coupled with modern disc-specific wheels and high-volume tyres. You’ll find yourself riding in a more confident, controlled, fluid and ultimately more efficient way.

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.

T47

This frame features a stainless-steel T47 BB Shell which allows the brake hose and gear cables to be 100% internally routed through the frame tubing and exit through the chainstays to the rear mech and flat-mount brake caliper.

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.

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. 

Thru-Axle Front & Rear

Our Steel and Alu. frames use the Mason ‘F-Stop’ thru-axles up front and bolt-thru axles at the rear. Our Titanium frames use the F-Stop axles front & Rear.
The F-Stop system is clockable to your desired position and can be adjusted as it 'beds-in', giving you a 'tool-free' and serviceable thru-axle with a familiar QR-style lever locking system. Threads are replaceable if damaged.

RangeFinder AR

We have developed the entirely new ‘RangeFinder AR’ fork which is custom- tuned for the SLR models. Featuring pannier & ‘rando’ style rack mounts, Ø12mm Thru-axle, 160/180mm flat-mount, and 700C x 40mm tyre clearance (with a 52mm fender) which is ideal for grand-touring duties. The carbon lay-up of the SLR fork has been optimised for this frame’s usage, delivering a super-smooth riding experience on variable and firmer surfaces. Additionally featuring sealed internal brake and dynamo light cable routing and our unique Mason 'F-Stop' axle system, with Mason developed SwitchLever axle and replaceable fork inserts.

Essential Dimensions: SLR

BRAKING

Rotor Size: The fork can take a 160 or 180mm rotor. 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.

SLR Flat-Mount Mounting Bolt Lengths: FRONT - 15mm. REAR - SRAM: 17mm. Shimano: 23mm.

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: Front - 120mm/1.5P. Rear - 166mm/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.

Max tyre widths with 'guards:

700C x 40mm (with fenders) | 700C x 45mm (without fenders)

SEAT POST

27.2mm.

SEAT CLAMP

31.8mm.

FRONT MECH

31.8mm

BB TYPE

T47

RANGEFINDER AR 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 maximum for carbon steerer. Warranty is void above this dimension.

Dimensions: Crown height - 398mm. Offset - 50mm.

Mounting Bolt Torque: 4Nm.

Pannier Racks: Max load capacity of 20kg. Follow manufacturers installation and loading instructions.

Rando Rack: Max load capacity of 10kg. 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 SLR custom formed, TIG welded, Dedacciai Zero/Uno.
Fork Mason Rangefinder AR custom tuned, full carbon, thru-axle fork with rack-mounts.
Headset Deda IN-5 Low profile integrated headset.
Colours ModeRed. ShutterBlack.
Bike Weight 54cm - approx. 9kg.
Sizes 48, 50, 52, 54, 56, 58, 60, 62.
Shifting SRAM Force AXS 12spd.
Chainset SRAM Force AXS 12spd. 48/35
Chain SRAM Force AXS 12spd. FlatTop
Braking SRAM Force AXS HRD Flat-Mount 160mm
Tyres Choice of premium Schwalbe & Continental Tubeless tyres. 30mm G-One Standard.
Cassette SRAM Force XG-1270 10-33 12spd.
Wheels MASON x HUNT AllRoad Disc wheels. Others available.
Handlebar Deda Zero100 black on black. 82º. 126g.
Clamp MASON Macro alloy ultralight.
Seatpost MASON Penta carbon, microadjust.
Saddle Fizik Tempo Argo R3.
Bar Tape Mason Contact Tape.
Stem Deda Zero100 black on black. 82º. 126g.