Broken Road Pinion

Photos for illustration purposes. Please check the bike spec for detailed component listings.

Broken Road Pinion

Expedition titanium pinion hardtail mtb


Multi-day titanium expedition mountain bike with Pinion gearbox, Rockshox Reba forks, and Rumpus 27.5+ boost wheels; this is designed for big mountain days and fully loaded adventures

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Sorry, this product isn't available at the moment.

Stock arriving Mid 2022


Multi-day titanium expedition hardtail designed for big mountain days and fully loaded adventures.

Plush 27.5+ tyres will rapidly steam roll over everything with a corner grip that will make a muddy WRT a breeze.

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Every Broken Road Pinion is built to order. This means the geometry, the tube lengths, the specification, everything is chosen exactly for you and the journeys you'll take.

It takes six months from the first conversations we have with you to getting your Broken Road Pinion for your first ride. In this time we'll talk exactly about what you need and where you're going so that we can design and build your perfect bike. It's actually a joyful six months, filled with the involvement of having a bike built especially for you, knowing the care and complete obsession over the detail that's going into it. Neil and our team of designers and builders are in touch every step of the way. It's a truly special experience.

The slackened angle gives the perfect balance of comfortable uphill grinding and exciting downhill whooping. Longer wheelbase wonderfully balances precision and handling.

Wide, ovalised top tube gives vertical compliance but lateral stiffness -this also makes it easier to keep your luggage in place when riding over rough ground.

Broken Road’s titanium frame is designed for optimum use with 27.5/27.5+ wheels but can be swapped out for 29ers to help you tackle any journey that you thrust upon it. The bigger, fatter wheels go over obstacles better, hold momentum and give enhanced control due to the angling.

At a glance

  • Pinion C1.12 gearbox
  • Rockshox Reba RL fork
  • Sonder Alpha 27.5" wheelset
  • Hand-welded titanium frame

Why Pinion?

The pinion version of the Broken Road puts all the moving parts of the gear system out of harm’s way and gives an almost silent, well-balanced ride.

It’s a low maintenance dream - you can cover 10,000km before you need to think about an oil change. The range of gears is just enormous (600%) and because of the way the gearbox works you can dump all of them in one go if you get caught out at the bottom of a brutal climb. It’s an amazing experience.

All the weight of the gears are low and central with a pinion gearbox so handling of the Broken Road Pinion is beautifully balanced and assured.

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Elegant titanium tubing

Hop on and experience the famed resilience of titanium. No other material is as durable, lasts as long, or looks as good, and Broken Road’s aeronautical grade titanium tubing isolates the rider from shock, gives an efficient ride, and maximizes storage potential. Thanks to the low standover height and rider clearance, you won’t have to make any compromises when riding over rough terrain either.

650b+ ready

Designed for optimum use with 27.5+ (semi-fat) wheels which help you to tackle any adventure. The plus-sized wheels cruise over obstacles, hold momentum, and give enhanced control thanks to a larger contact patch.

Trail bike geometry

The long wheelbase combines precision and control, giving you the flexibility to adjust riding position easily. The frame is designed with a relaxed head angle, creating the perfect set up for eating up the miles over any surface, and striking the balance between comfortable uphill grinding and hair-raising downhill whooping.

Adjustable sliding dropouts

Adjustable sliding dropouts let you lengthen your Broken Road for eating up the miles or shorten it for the technical, steep trails, and allow for either 27.5+ or 29” wheels, and either singlespeed, derailleur, or internal hub gears.

Rear rack mount lugs

Rack mounts allow you to load up with panniers.

Build Spec
Frame:Broken Road Frame / titanium
Fork:Rockshox Reba RL / 100mm (travel)
Headset:FSA Orbit C-40-ACB
Shifters:Pinion Rotary / 1x / 12-speed / hydraulic
Brakes:SRAM Guide R / hydraulic / direct mount
Rotors:Avid Centreline / 180mm (front); 160mm (rear) / 6-bolt
Gearbox:Pinion C1.12 / 12-speed
Chainset:Pinion Forged / 170mm / 30t
Cassette:Pinon rear chainring / 30t
Chain:Pinion X1
Wheels:Sonder Alpha 27.5"
Tyres:Goodyear Peak Tubeless / 27.5 x 2.25" / tan
Tubes:WTB Inner Tube / 29 x 1.9-2.3"
Finishing kit
Handlebars:Sonder Aspect Riser
Stem:Sonder Piskie
Seatpost:Sonder Seatpost / 31.6mm
Saddle:Sonder Zone
Grips:Sonder Clutch
Frame:S: 1.97kg; M: 2.0kg; L: 2.1kg; XL: 2.14kg
Build:S: 12.4kg; M: 12.65kg; L: 13.8kg; XL: 13.9kg
Pedals not included with full builds
Geometry and Sizing


It is important to get the right size bike, if the bike fits it will be faster, more comfortable, and easier to handle. You can also take into consideration the standover height to ensure you pick a bike that will be a good fit. If you measure your inside leg and ensure there is a minimum of an inch from the top tube to your crotch this will give you enough seat post adjustment to find your optimum saddle height. Generally we recommend:
Riders between 5ft 2in and 5ft 7in
Riders between 5ft 6in and 5ft 10in
Riders between 5ft 9in and 6ft 2in
Riders of 6ft 2in +
Size Small Medium Large X-Large
ST - Seat tube 395 445 470 508
ETT - Effective Top tube 592 616 644 668
TT - Top tube 600 615 628 646
HT - Head tube 120 135 145 160
HA - Head angle 68 68 68 68
SA - Seat angle 73 73 73 73
CS - Chainstay 440 - 460 (adjustable) 440 - 460 (adjustable) 440 - 460 (adjustable) 440 - 460 (adjustable)
BB - BB drop 58 58 58 58
FO - Fork offset 50 50 50 50
WB - Wheelbase 1142 1154 1168 1190
SO - Stand over 736 767 782 808
RE - Reach 410 430 455 475
SK - Stack 595 609 618 632
Frame Spec
Titanium is lightweight, strong and durable make it an ideal construction material for bike frames. No other material is as durable, lasts as long, or looks as good. Our frames are handmade and come with a 10 year frame warranty
Weight (kg): S: 1.96; M: 1.98; L: 2.0 ; XL: 2.2
3Al/ 2.5V Aeronautical Grade Hand Welded Titanium Frame
148 mm boost thru axle standard
Rear rack mount lugs
Headset: IS42/IS52
Seatpost: 31.6 mm
Seat tube OD: 34.9 mm
73 mm BB shell