InSearchOf Rival1X £3,140.00

Colour

  1. FilterGreen
  2. ElementGrey

Size

650B OR 29er Dynamo

InSearchOf Rival1X

".. the moment I clipped in and turned the pedals it became apparent very quickly that this bike turned convention on its head; a rutted goat track – yep, a rock strewn pass – yep.  a fast tarmac descent – yep, a classic Pyrenean ascent – yep. a ‘I need to get home fast chain-gang’ – yep.
I don’t know how it does it but everything I asked this bike to do, it did. It actually blew my mind and the position also means it’s ridiculously comfortable; everywhere and anywhere."
 

This new bike is still firmly in the #FastFar, #ContinentCrushing vein but a progressive new frame and fork design allow it to use 29 x 2.4” or 650b x 2.8 wheels, meaning steeper, rougher and deeper terrain are well within it’s capabilities. Multiple mounting points, a bespoke load-bearing mudguard, specific rack systems, 160/180 flat-mount braking and 100mm suspension-ready geometry mean that the InSearchOf, once again, does not shy away from the ‘Progressive’ word in our title.

Complete builds with 'The Search' Dynamo Wheelset are +£160

CLICK HERE FOR FULL GEOMETRY

Features

  • Blend of Custom-formed, Progressive-butted, Dedacciai ‘Zero’ and Reynolds 853 steel tubing.
  • Unique HotShoe 160/180mm flat-mount braking system.
  • This bike is available with the specially developed Mason x Hunt The Search Dynamo wheelset as shown, or the back-country ready HUNT TrailWide 27.5 wheels.
  • For seriously long solo rides into the unknown: 29 x 2.4" 'The Search' wheelset spec'd with WTB Ranger 2.4" Tan-walls.
  • HotShoe Fork: Designed by MASON exclusively for ISO. Featuring ‘Tri-Mount’ crown system for use with a range of modular accessories. Internally routed for dynamo light systems and eyletted for rack and muguards.
  • UK designed, Fabric saddles and bar tape.
  • Comes with 'Shutter' Mudguard; designed to provide effective coverage from dirt & debris when riding at speed and in mud.
  • Extended MTB milage over rugged trails and dire conditions: 27.5 TrailWide spec'd with WTB Ranger 2.8" tyres.
  • CNC'd and durable SRAM 'Rival1X' Groupset with matching TruvAtiv Stylo 6K 34T crankset.
  • ‘Anything Cage‘ style bosses on-top-of and underneath Down Tube.
  • Fully and discretely eyeletted for racks.
  • Carbon Mason Penta 31.6mm Microadjust 'post and Mason Macro 'clamp.
  • Adventure-specific Ritchey VentureMax Comp 'bars optimise comfort over long distances, load capacity and control over rough terrain.
  • Precisely engineered 10-42T wide range cassette.
  • Can be fitted with a wide selection of WTB or Schwalbe Tyres. Please contact us for details.
  • Unique Mason MultiPort 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 420
B > SEAT TUBE C/C 380
C > BB DROP 76
D > REAR CENTRE 445
E > TT EFFECTIVE 542.3
F > TT ACTUAL 527.3
G > STACK 608.3
H > REACH 365.8
I > S/O - 27.5 x 2.8
(Measured vertically, 50mm in front of BB centre)
74.0
I > S/O - 29 x 2.4
(Measured vertically, 50mm in front of BB centre)
76.0
J > OFFSET 50
K > TRAIL 86.1
L > FORK CROWN HEIGHT 483
M > HEAD ANGLE 69.5
N > HEAD TUBE LENGTH 100
O > SEAT TUBE ANGLE 74.0
P > WHEELBASE 1056.7
Q > HANDLEBAR (OUTSIDE DIMENSION) 420
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 460
B > SEAT TUBE C/C 415
C > BB DROP 75
D > REAR CENTRE 445
E > TT EFFECTIVE 553.2
F > TT ACTUAL 534.3
G > STACK 619.3
H > REACH 373.8
I > S/O - 27.5 x 2.8
(Measured vertically, 50mm in front of BB centre)
76.5
I > S/O - 29 x 2.4
(Measured vertically, 50mm in front of BB centre)
78.5
J > OFFSET 50
K > TRAIL 82.6
L > FORK CROWN HEIGHT 483
M > HEAD ANGLE 70.0
N > HEAD TUBE LENGTH 110
O > SEAT TUBE ANGLE 74.0
P > WHEELBASE 1063.8
Q > HANDLEBAR (OUTSIDE DIMENSION) 440
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 500
B > SEAT TUBE C/C 445
C > BB DROP 75
D > REAR CENTRE 445
E > TT EFFECTIVE 557.6
F > TT ACTUAL 536.4
G > STACK 628.3
H > REACH 375.7
I > S/O - 27.5 x 2.8
(Measured vertically, 50mm in front of BB centre)
79.0
I > S/O - 29 x 2.4
(Measured vertically, 50mm in front of BB centre)
81.0
J > OFFSET 50
K > TRAIL 82.6
L > FORK CROWN HEIGHT 483
M > HEAD ANGLE 70.0
N > HEAD TUBE LENGTH 120
O > SEAT TUBE ANGLE 74.0
P > WHEELBASE 1068.9
Q > HANDLEBAR (OUTSIDE DIMENSION) 460
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 540
B > SEAT TUBE C/C 490
C > BB DROP 75
D > REAR CENTRE 445
E > TT EFFECTIVE 566.6
F > TT ACTUAL 544.7
G > STACK 637.7
H > REACH 382.0
I > S/O - 27.5 x 2.8
(Measured vertically, 50mm in front of BB centre)
82.5
I > S/O - 29 x 2.4
(Measured vertically, 50mm in front of BB centre)
84.5
J > OFFSET 50
K > TRAIL 82.6
L > FORK CROWN HEIGHT 483
M > HEAD ANGLE 70.0
N > HEAD TUBE LENGTH 130
O > SEAT TUBE ANGLE 74.0
P > WHEELBASE 1078.6
Q > HANDLEBAR (OUTSIDE DIMENSION) 460
Dimensions
(mm unless specified)
A > SEAT TUBE C/T 580
B > SEAT TUBE C/C 530
C > BB DROP 73
D > REAR CENTRE 445
E > TT EFFECTIVE 586.5
F > TT ACTUAL 564.7
G > STACK 656.8
H > REACH 396.6
I > S/O - 27.5 x 2.8
(Measured vertically, 50mm in front of BB centre)
86.5
I > S/O - 29 x 2.4
(Measured vertically, 50mm in front of BB centre)
88.5
J > OFFSET 50
K > TRAIL 79.0
L > FORK CROWN HEIGHT 483
M > HEAD ANGLE 70.5
N > HEAD TUBE LENGTH 150
O > SEAT TUBE ANGLE 74.0
P > WHEELBASE 1095.3
Q > HANDLEBAR (OUTSIDE DIMENSION) 480

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.

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 Blend of Custom-formed Progressive-butted Dedacciai ‘Zero’ and Reynolds 853 steel tubeset.
Fork Mason 'HotShoe' ThruAxle, 180/160 FlatMount, carbon fork.
Headset DEDA Low profile, integrated headset.
Colours FIlterGreen. ElementGrey.
Bike Weight 50cm - 12kg.
Sizes 42, 46, 50, 54, 58.
Shifting SRAM Rival 1X HRD.
Chainset TruvAtiv Stylo DUB, 34T.
Cassette SRAM XG-1150 10-42T.
Chain SRAM Force PC1170.
Braking SRAM Rival HRD F180/R160 FlatMount.
Tyres WTB Ranger: 27.5 x 2.8" / 29 x 2.4" Tan Wall.
Wheels Mason X HUNT 'The Search Dynamo' 29 Boost wheelset / HUNT TrailWide 27.5 Boost.
Handlebar Ritchey VentureMax Comp.
Clamp Mason Macro 34.1mm ultra-light.
Seatpost Mason Penta 31.6mm Carbon.
Saddle Fabric Scoop Elite Alloy.
Bar Tape Fabric Hex Black.
Stem Ritchey WCS Trail.