Farr Twin-T Bike Frame Quantum Grey
Looking for something unique and versatile? The Twin-T is your answer.
The downtube design is inspired by both BMX and motorcycle frames that date back more than 3 decades.
However, when you delve deeper into the details, you will realize that while inspired by the past, there is really nothing like it currently available.
This is a full-blown 29er off-road bike that was designed with modern MTB frame geometry and bike standards.
This combination of geometry and frame standards offer a unique versatility and durability that delivers the freedom to be very creative with how you spec and build yours.
Whether it is a bike-packing rig for multi-day adventures or a gravel build for touring, we know this bike is ready and up for it!
Check out the full breakdown of features to get your dream bike build ideas flowing.
- TWIN-T 4130 Chromo Frame – S, M, L Sizes Available (see Geometry and Sizing Tab)
- Alloy Headset for Taper Headtube
- Custom Alloy Rear Thru-Axle
- CNC Seatclamp – 34.9mm
This is NOT a Trail Bike.
Whilst the numbers and geometry are leaning towards modern trail bike design, we have stuck to fairly conservative reach and frame angles to ensure versatility.
Our MTB build showcases the bike’s unique style and custom opportunities for riders wanting a truly one-of-a-kind design and ride quality.
The frame is well suited to 100 to 120mm travel suspension forks, so we reached out to Bright Racing Shocks in Italy for something really special! Their F929 XCO fork may be lean on details ( their website is in Italian ) but it oozes custom and beautiful machining and detailing. They were kind enough to do a custom 510mm length axle-to-crown and spec it with 120mm of air travel. The custom red anodizing was just adding some icing to the cake!
For the drivetrain and components we stuck to a more XC/Adventure spec , from our new Headspace 70mm Stem and Supa-Moto Riser to the SRAM NX ( yes, nothing too fancy ) Eagle drivetrain, we tried to create a build that was bespoke but still sensible.
Comparing the MTB build to that of the GRAVEL option, there are some similarities which show how the frame could be built either way, same wheels etc.
|FRAME||BUTTED CROMO CUSTOM TUBING, TAPERED HEADTUBE, AVAILABLE IN 3 SIZES, BOOST 148 REAR SPACING|
|DRIVETRAIN||DESIGNED FOR 1X DRIVETRAIN, 30 TO 36T RECOMMENDED, 52MM CHAINLINE|
|FORK||DESIGNED AROUND 510MM AXLE-TO-CROWN FORK / 120MM SUSPENSION TRAVEL RECOMMENDED|
|BOTTOM BRACKET||73mm THREADED|
|TYRE SPEC||74mm CLEARANCE, 29 X 2.35 MAX ( 27mm INTERNAL RIM ) RECOMMENDED, ALSO 27.5 x 2.6 COMPATIBLE|
|ATTACHMENTS||2X BOTTLES IN MAIN FRAME, DROPPER POST READY WITH INTERNAL CABLE IN SEATTUBE|
|FRAME SPACING||148 X 12mm / PITCH 1.75mm|
|BRAKE SPEC||POST MOUNT, 160mm ROTOR|
|HEADSET SPEC||INTEGRATED, 42mm UPPER, 52mm LOWER|
|ACCESSORIES||INCLUDES HEADSET, REAR AXLE, SEATCLAMP|
|WEIGHT||3.26KG ( RAW, BEFORE PAINT ) – SIZE 43cm ( MEDIUM )|
|FRAME||TWIN-T, 4130 CROMOLY TUBING, BOOST 148 REAR, ADJUSTABLE SLIDING DROPOUT, AVAILABLE IN 3 SIZES|
|FORK||BRIGHT RACING SHOCKS, F929 XCO, CUSTOM 510MM AXLE-TO-CROWN, 120MM TRAVEL|
|HEADSET||CANE CREEK SLAMSET PREMIUM, IS42 28.6, IS52 40, BLACK|
|STEM||FARR HEADSPACE, 70MM EXTENSION, 31.8MM BAR DIAMETER|
|HANDLEBAR||FARR SUPA-MOTO RISER HANDLEBAR, 780MM, 16 DEGREE SWEEP, 31.8MM BAR BORE|
|GRIPS||ODI ELITE FLOW LOCK-ON V2.1, BLACK|
|ROTOR||SHIMANO SM-RT76, 180MM FRONT, 160MM REAR, 6-BOLT|
|BRAKE CALIPER||SHIMANO XT BR-M8100|
|BRAKE LEVER||SHIMANO XT BL-M8100|
|TYRES||SPECIALIZED FAST TRAK, 29 X 2.3, GRIPTON COMPOUND, BROWN SIDEWALL|
|TUBE||NIL, CONVERTED TO TUBELESS WITH STAN’S SEALANT AND TAPE|
|RIMS||DT SWISS XM481, 32 HOLE, BLACK|
|SPOKES||SAPIM RACE SILVER, J-BEND, 32H|
|FRONT HUB||WHITE INDUSTRIES XMR+, 32H, BOOST 110, BLACK|
|REAR HUB||WHITE INDUSTRIES XMR+, 32H, BOOST 148, BLACK|
|CHAINWHEEL SET||RACEFACE RIDE, DIRECT MOUNT WITH CINCH 32T RED CHAINRING|
|CHAIN||SRAM PC-1230 FOR 12 SPEED|
|BOTTOM BRACKET||RACEFACE BSA 68/73 THREADED|
|PEDALS||RYFE SASQUATCH PLATFORM|
|SADDLE||FARR S-RZ, CRN-TI ALLOY RAIL|
|SEATPOST||FOX TRANSFER FACTORY KASHIMA, 125MM DROP, 31.6MM, WOLFTOOTH TRIGGER REMOTE|
|SEAT BINDER||FARR CUSTOM CNC MACHINED ( SUPPLIED WITH FRAME )|
|SHIFTERS||SRAM NX TRIGGER|
|REAR DERAILLEUR||SRAM NX EAGLE|
|CASSETTE||SRAM PG1230, 11-50T|
Q : Is this frame for GRAVEL or MTB use?
A : The simple answer is BOTH. With the way GRAVEL builds and component choice is evolving, the lines are getting very blurry to say the least. With our slightly longer ( than MTB’s from just 2 or 3 years ago ) and slightly slacker frame design, the frame could easily be built as a dropbar or riser/flat MTB build. Add in the massive tyre clearance in the frame and the flexibility is there.
Q : What frame tubing is used on this frame?
A : We use 4130 Cromoly tubing throughout the frame. The tubing has been carefully selected to ensure the “lively” and unique “feel” of steel is evident during the ride. From the small 22.2mm twin-tubes that run from the headtube to the BB, to the butted 34.9mm ( 1.65mm to 0.9mm ) seattube, every tube has been carefully selected for a special blend of ride quality.
Q : Why is the frame so damn heavy?
A : Cromoly. That special and unique frame material that offers incredible durablity and a “lively” feel on the trail is unfortunately not light! Given the preferred and intended use of this frame ( bikepacking / adventure / touring / fun ) we figured having a durable and reliable frame that weighs roughly 800g more than a “conventional steel hardtail “ is well worth the extra grams. Add your favorite adventure gear and bags and the +800g or so is really marginal. It’s like carrying an extra 750ml bottle on your bike … We also think the look and style of the frame is worth that extra few grams!
Q : What is the tire clearance on this frame?
A : We designed it around a 29 x 2.4 width spec ( using an internal rim width up to 30mm ) and this means it could also work with 27.5 x 2.6 rubber.
Q : Can I run this frame as a 2x Spec?
A : Nope, there is no cable routing for that. This is a 1x specific frame.
Q : If I built it up as a MTB build, what fork travel can I run?
A : The frame’s geometry was optimized for an axle-to-crown measurement of 510mm. This means a 100 to 120mm travel fork would be ideal to ensure the bike still handles and rides like it was intended. You could possibly run a 130mm fork but that would be the edge of the spectrum – don’t go longer.
Q : What if I wanted to run a Rigid Fork?
A : A great option and we designed this frame to work with 29er Rigid Forks. Our Cromo Rigid 29er Fork would be the ideal match for this frame. As the frame uses Boost 148 rear spacing, it would make sense to ensure the Rigid Fork is also Boost – that being 110 spacing.
Q : Can I run a Dropper Seatpost?
A : Yes, the seattube has an internal cable port at the rear of the tube, near the BB. The inner diameter is 31.6mm. We would recommend a 100 to 125mm drop version.
Q : Why only 3 frame sizes?
A : As this is our first year offering this style of frame and recognizing it is a fairly unique choice of both material and geometry, we had to be conservative to reach certain minimum order quantities with our frame supplier. The LARGE size with a longer dropper could work as an XL for some. If this frame is successful, we would look at adding more sizes either side of the spectrum.
Q : What is the warranty on this frame?
A : 5 years for defects in materials and construction. As a 4130 Cromoly frame, these are going to be a lot more durable and tougher than a similar Alloy or Carbon version.
Q : Where is this frame manufactured?
A : This frame is welded and finished in Taiwan. We work with a highly respected frame manufacturer and the paint/finish is handled by a special paint shop in Taiwan.
Q : Can I contact you for technical assistance and advice on components to purchase for my build?
A : Definitely! We would welcome enquiries and e-mails requesting assistance. Given the nature and design of these frames, they are going to allow for some very creative and bespoke builds. Feel free to reach out and we will endeavour to assist or at least point you in the right direction with regards to which parts to source and purchase.