Aspect Frameset £3,700.00

Size

Aspect Frameset

"Verdict: An exceptional balance of speed, comfort and handling backed up by exemplary handbuilt quality". "Extreme levels of craftsmanship; truly beautiful riding experience"
Overall 4.5/5    Frameset 10/10
 
road.cc | Stu Kerton, 2019

"The first thing that struck me about the Aspect was just how silky the ride feel is. It deals with creased and pitted road surfaces beautifully."

Cyclist | Stu Bowers, 2019

BUILDS FROM £5,200.

MANY FULL BIKE BUILDS, BASED ON THE ASPECT FRAMESET AND WITH SIMILAR BUILD LEVELS/OPTIONS TO OUR DEFINITION2 AND RESOLUTION2, INCLUDING NEW SRAM AXS, ARE AVAILABLE NOW.

Our new titanium ‘Aspect’ is designed to be a super-smooth, fast, ultra-distance rocket ship for long rides on variable and unpredictable surfaces.

We have developed an entire new Ti tube set working with Dedacciai and Reynolds UK and the Aspect uses the incredible Reynolds 3D printed Ti dropouts. Superb Tuscany made craftsmanship, super-high finish quality, our Mason Aperture2 fork, Hunt wheelsets with up to 35mm tyres and highly customisable build levels make the limited production Mason Aspect a very special bicycle indeed.

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

  • MasonXDedacciai, custom formed & shaped, Titanium 3AL-2.5V frame with Mason Aperture2 full carbon Thru-axle/Flat-mount fork.
  • Reynolds UK, 3D-Printed Titanium Thru-axle/Flat-mount dropouts.
  • Mason-developed, Reynolds double-bend and tapered titanium chain stays and exclusive signature D-Form Titanium down tube.
  • Exclusive MASON 'Aperture2', UD Carbon, Thru-axle/Flat-Mount fork with eyelets for fixed/dynamo light set-ups and mudguard.
  • Micro-bead blast 'Structural Surface Finish' with mirror-polished MASON graphics and discrete 'special for Ti' decals.
  • Fully eyeletted, internally routed and Di2 ready as standard.
  • Mason MultiPort system for adaptable internal routing.
  • Capacity for up to a 35mm tyre.
  • Includes our beautifully finished 'Mason Penta' UD carbon, micro-adjust seatpost. Ø27.2, 215g.

Details

Technical info

Select size
 

Dimensions
(mm unless specified)
A > SEAT TUBE C/T 480
B > SEAT TUBE C/C 432.9
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 > FORK CROWN HEIGHT 380
L > HEAD ANGLE 71
M > HEAD TUBE LENGTH 120
N > SEAT TUBE ANGLE 74.5
O > WHEELBASE 989
P > HANDLEBAR (OUTSIDE DIMENSION) 40/42
Q > FRONT CENTRE 580
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 500
B > SEAT TUBE C/C 452.6
C > BB DROP 73
D > REAR CENTRE 425
E > TT EFFECTIVE 532.6
F > TT ACTUAL 516
G > STACK 552.8
H > REACH 377.5
I > STAND-OVER 758.9
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 71.5
M > HEAD TUBE LENGTH 140
N > SEAT TUBE ANGLE 74.5
O > WHEELBASE 1004.2
P > HANDLEBAR (OUTSIDE DIMENSION) 42
Q > FRONT CENTRE 590
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 520
B > SEAT TUBE C/C 472.8
C > BB DROP 73
D > REAR CENTRE 425
E > TT EFFECTIVE 536.8
F > TT ACTUAL 520.8
G > STACK 567
H > REACH 377.8
I > STAND-OVER 775.7
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 71.5
M > HEAD TUBE LENGTH 155
N > SEAT TUBE ANGLE 74.5
O > WHEELBASE 1009.2
P > HANDLEBAR (OUTSIDE DIMENSION) 42
Q > FRONT CENTRE 595
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 540
B > SEAT TUBE C/C 493.2
C > BB DROP 71.5
D > REAR CENTRE 425
E > TT EFFECTIVE 551.2
F > TT ACTUAL 534.2
G > STACK 579.7
H > REACH 378.2
I > STAND-OVER 792.1
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 71.5
M > HEAD TUBE LENGTH 170
N > SEAT TUBE ANGLE 73.5
O > WHEELBASE 1014.7
P > HANDLEBAR (OUTSIDE DIMENSION) 44
Q > FRONT CENTRE 600
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 560
B > SEAT TUBE C/C 513.4
C > BB DROP 71.5
D > REAR CENTRE 425
E > TT EFFECTIVE 560.7
F > TT ACTUAL 544.5
G > STACK 594
H > REACH 385.5
I > STAND-OVER 808.8
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 71.5
M > HEAD TUBE LENGTH 185
N > SEAT TUBE ANGLE 73.5
O > WHEELBASE 1024.7
P > HANDLEBAR (OUTSIDE DIMENSION) 44
Q > FRONT CENTRE 610
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 580
B > SEAT TUBE C/C 533.8
C > BB DROP 71.5
D > REAR CENTRE 425
E > TT EFFECTIVE 581.2
F > TT ACTUAL 564.7
G > STACK 605.4
H > REACH 390
I > STAND-OVER 822.9
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 72
M > HEAD TUBE LENGTH 195
N > SEAT TUBE ANGLE 72.5
O > WHEELBASE 1029.7
P > HANDLEBAR (OUTSIDE DIMENSION) 46
Q > FRONT CENTRE 615
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 600
B > SEAT TUBE C/C 554.1
C > BB DROP 70
D > REAR CENTRE 425
E > TT EFFECTIVE 585.9
F > TT ACTUAL 571.8
G > STACK 613.4
H > REACH 392.2
I > STAND-OVER 837.9
J > OFFSET 45
K > FORK CROWN HEIGHT 380
L > HEAD ANGLE 72
M > HEAD TUBE LENGTH 205
N > SEAT TUBE ANGLE 72.5
O > WHEELBASE 1035.2
P > HANDLEBAR (OUTSIDE DIMENSION) 46
Q > FRONT CENTRE 620
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 > FORK CROWN HEIGHT 380
L > HEAD ANGLE 72.5
M > HEAD TUBE LENGTH 210
N > SEAT TUBE ANGLE 72.5
O > WHEELBASE 1040.2
P > HANDLEBAR (OUTSIDE DIMENSION) 46
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.

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.

 

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.

Custom Mason X Dedacciai Tubing: ZERO

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

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.

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.

Aperture2 Fork

Designed and tooled for by us and unique to MASON. This frame is fitted with our beautiful 'Aperture2' 365g, Ø12mm thru-axle/flat-mount, monocoque carbon fork.

Features: Mason F-Stop axle system including replaceable axle inserts, TrueTaper steerer, Internal Routing for Dynamo and brake-hose, Full mudguard clearance, space for 32mm tyres + 'guards [up to 35mm without 'guards, depending on rim/tyre spec] Custom layup UD carbon construction, discrete eyelets.

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.

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

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.

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.

 

Structural FInish

Our 'structural surface finish' is highly resilient to dirt, debris, and abrasion. The soft-sheen, bead-blasted surface finish helps to stress relieve the skin of the frame after welding. This process improves its toughness, discourages surface cracking and produces a beautiful, long lasting lustre on the Ti tubing.

Re-Machinable Bearing Seats

Fully integrated, bonded in headset cups are replaceable [re-machinable by Mason] in the rare occurance of wear or damage. Mason frames and bicycles are an investment and features like this vastly extend the lifetime of your bicycle.

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

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.

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.

Essential Dimensions: Resolution/Definition/Aspect

BRAKING

Resolution Rotor Size: The fork can take a Ø140 or Ø160mm rotor [using adaptor], if you are using Shimano IceTech rotors then Ø140mm rotors either end are fine in normal use, although Shimano recommend Ø160 both ends for larger riders or extended long descents, especially when loaded. SRAM recommend Ø160mm front/rear. A Ø160mm up front is best if you are using cable braking. The Resolution2, with Thru-Axle front & rear will now accept a Ø160mm rotor on the rear. [140mm is the maximum recommended diameter for the V1 rear].

Resolution Caliper Type: Frames are fitted with the Flat-Mount front & rear (adaptable to post-mount with correct adapter). There are no clearance issues with modern Shimano or SRAM hydraulic systems or mechanical systems such as ‘TRP Spyre’. Some bulky systems like the ‘TRP HyRd’ may have compatibility issues on smaller size frames. Please contact us for advice if you are in doubt.

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

Definition Rotor Size: The fork can take a Ø140 or Ø160mm rotor [using adaptor], if you are using Shimano IceTech rotors then Ø140mm rotors either end are fine in normal use, although Shimano recommend Ø160 both ends for larger riders or extended long descents, especially when loaded. SRAM recommend Ø160mm front/rear. A Ø160mm up front is best if you are using cable braking. 160mm is the maximum recommended diameter for the rear.

Definition Caliper Type: Frames are fitted with the flat-mount front and flat-mount rear. There are no clearance issues with modern Shimano systems or mechanical systems such as ‘TRP Spyre’. Some bulky systems like the ‘TRP HyRd’ may have compatibility issues on smaller size frames.

Definition Flat-Mount Mounting Bolt Lengths: FRONT - 15mm. REAR - SRAM: 22mm, using 2mm spacer under bolt head. Shimano: 28mm, using 2mm spacer under bolt head. Please contact us using the 'Technical' dropdown if you require further information regarding spacers and caliper mounting.

Aspect Rotor Size: The fork can take a Ø140 or Ø160mm rotor [using adaptor], if you are using Shimano IceTech rotors then Ø140mm rotors either end are fine in normal use, although Shimano recommend Ø160 both ends for larger riders or extended long descents, especially when loaded. SRAM recommend Ø160mm front/rear. A Ø160mm up front is best if you are using cable braking.

Aspect Caliper Type: Frames are fitted with the Flat-Mount front & rear (adaptable to post-mount with correct adapter). There are no clearance issues with modern Shimano or SRAM hydraulic systems or mechanical systems such as ‘TRP Spyre’. Some bulky systems like the ‘TRP HyRd’ may have compatibility issues on smaller size frames. Please contact us for advice if you are in doubt.

Aspect 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: Our frames are 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/AXLES

Resolution2:

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.

Definition2 >:

Ø12mm Thru-axle Front / Ø12mm Thru-axle rear.

Front axle spacing: 100mm. Rear axle spacing: 142mm.

Axle length/pitch: Front - 120mm/1.5P. Rear - 160mm/1.5P.

Aspect:

Ø12mm Thru-axle Front / Ø12mm Thru-axle rear.

Front axle spacing: 100mm. Rear axle spacing: 142mm.

Axle length/pitch: 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.

Resolution/Definition/Aspect:

Max tyre width with mudguard: 32mm [Dependant on rim/tyre/mudguard combination].

Max tyre width without mudguard: 35mm - untreaded. [Dependant on rim/tyre/mudguard combination].

Resolution/Aspect:

SEAT POST

27.2mm.

SEAT CLAMP

31.8mm.

FRONT MECH

31.8mm

Definition3:

SEAT POST Ø

Frame size 48 to 58cm: 27.2mm. Frame size 60 & 62cm: 31.6mm.

SEAT CLAMP Ø

Frame size 48 to 58cm: 31.8mm. Frame size 60 & 62cm: 34.9mm.

FRONT MECH Ø

Frame size 48 to 58cm: 31.8mm. Frame size 60 & 62cm: 34.9mm.

Resolution/Definition/Aspect:

CHAINRINGS

Max 2x chainring size: 52/36T

Max 1x Chainring size: 50T

BB TYPE

68mm shell width. BSA threaded.

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.