Aspect Frameset £3,450.00

Aspect Frameset

Available for order NOW - Please call or contact us here for build pricing and availability.

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

Details

Click and drag the images below or use the orange < / > buttons to explore through this model's fine details and unique features.

Technical info

Select size
 

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 > TRAIL 66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 140
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 1004.2
Q > HANDLEBAR (OUTSIDE DIMENSION) 42
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 > TRAIL 66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 155
O > SEAT TUBE ANGLE 74.5
P > WHEELBASE 1009.2
Q > HANDLEBAR (OUTSIDE DIMENSION) 42
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 > TRAIL 66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 170
O > SEAT TUBE ANGLE 73.5
P > WHEELBASE 1014.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
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 > TRAIL 66.3
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 71.5
N > HEAD TUBE LENGTH 185
O > SEAT TUBE ANGLE 73.5
P > WHEELBASE 1024.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 44
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 > TRAIL 63.2
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 72
N > HEAD TUBE LENGTH 195
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1029.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 46
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 > TRAIL 63.2
L > FORK CROWN HEIGHT 380
M > HEAD ANGLE 72
N > HEAD TUBE LENGTH 205
O > SEAT TUBE ANGLE 72.5
P > WHEELBASE 1035.2
Q > HANDLEBAR (OUTSIDE DIMENSION) 46

This page gives you some guidelines based on height, but these are only a starting point for a proper bike fitting. The dimensions show the extremes of useable frame size based on height.

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 even skill level are very different. This means that there will invariably be different frame size requirements, even for people of the same height and inseam.

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 I would always recommend having a proper bike fit done before committing, especially if you feel like you may be between sizes.

We have specified bar width, stem length, and crank length to be the best fit for the majority of riders on each frame size, but we can sometimes make adjustments to this at your request. Please contact us for advice, or just let us know your sizing requirements in the comments box at the checkout page.

We'll set-up the front brake to be operated by the Right Hand lever for all UK destinations. For destinations outside of the UK, we'll set-up your bicycle with Front Brake/Left Hand as standard. It's no problem for us to set-up the brakes in your own chosen configuration, please state in 'Order Notes' how you like 'em.

If you are between 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.

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.

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.

Fork

Unique to MASON. This frame is fitted with our new 'Aperture2' 365g, Ø12mm thru-axle/flat-mount, monocoque carbon fork. Features: Mason F-Stop axle system including replaceable axle inserts and clockable axle, TrueTaper steerer, Internal Routing, Full mudguard clearance, space for 32mm tyres + 'guards [up to 35mm without 'gaurds, 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.

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.

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 advatage 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 it's 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.

 

Custom Tubeset

We choose each tube individually, considering the influence that it will have on ride quality and overall performance. We will use a blend of tubing types, custom shapes and bends to help us achieve this goal.

Modern metal frames draw on many of the design influences learnt from composite frames, such as oversized BB’s, taper head tubes and switchable internal routing. Teamed with a properly designed carbon-monocoque fork like the Parallax or Aperture2, the contemporary Aluminium, steel or Titanium frame is a formidable piece of kit.

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

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.

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.

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.

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:

Max tyre width with mudguard: 30mm.

Max tyre width without mudguard: 33mm (untreaded).

SEAT POST

27.2mm.

SEAT CLAMP

31.8mm.

FRONT MECH

31.8mm

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.