Tyaughton Steel

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Tyaughton Steel

$3,595.00 USD Sale Save

The Knolly Tyaughton Steel, our second hardtail model, comes in steel which is heated-treated to give it high strength and durability. It can run a 150mm or 160mm fork and features advanced geometry. The Tyaughton Steel hardtail is everything you need for a super capable and playful trail bike.

Colour Container Red

Complete bikes ship unassembled & require a full build. Spec is subject to change without notice. If you have any questions, contact us at info@knollybikes.com.


We chose air hardened steel because it’s malleable which allows us to craft the tubing to the exact spec’s we need. It’s also heat treated to give high strength and durability. We also apply an ED anti-corrosion coating on all our tubes so that the Tyaughton is ready for all weather conditions.

Progressive geometry

The Tyaughton’s geometry has been designed from the ground up: we’ve utilized our extensive knowledge from our full suspension line-up to ensure that this bike rides as competently as our suspension models while still being incredibly balanced across all types of terrain. While conceived as an “all around, do everything bike”, the Tyaughton is extremely progressive and suited both to big days in the saddle as well as shredding your local trails.

The Tyaughton features a 64.5 degree head angle with a 150mm fork (or a 64 degree head angle with a 160mm fork) which makes it capable on both technical uptracks and steep descents. The seat tube angle is ideally positioned at 75 degrees to deliver an efficient climbing position while also ensuring that the rider’s hands and knees are comfortable during epic days. The front end of the bike is long to increase room in the cockpit and allow the rider to stretch out. The chainstay is modest at 427mm, blending stability and maneuverability. It’s long enough to give the bike optimum balance across its wheelbase but short enough to get out of your way when you need to get the front end of the bike up. The back end of the bike is engineered for compliance and delivers a supple ride.

Custom tubing

The Tyaughton Steel features a frame size specific butted, bent and formed tubeset that blends production level repeatability and precision with a craftsmen level of manufacturing.
It features a size specific tubeset (small frames don’t get the same tubes as the XL and vice versa) and incorporates many of the titanium frame features including integrated ISCG05 chain guide tabs and a unique head tube.

In addition, both Steel and Titanium frames have a unique head tube shape designed to maximize strength to support forks up to 170mm. Tubesets flow into custom CNC machined dropouts, yokes and access ports (Titanium-only) so that stress risers are minimized. Even the included ISCG mount attaches cleanly into a recessed CNC machined pocket on the chainstay yoke.


We feature 157Trail rear hub spacing which uses the wide flange 157 hubs with 73mm BB shells. This spacing provides the most options for tire size and can easily clear tire widths up to 2.6. With 157Trail, heel clearance is exceptional and chainring clearance remains huge at 36T.

Human Centric Sizing

We have always believed in human centric sizing and design our bikes to deliver optimal reach, standover height and geometry for a broad range of riders.


S155cm - 170cm
M170cm - 178cm
L178cm - 188cm
XL188cm - 195cm


Head angle64,5º64,5º64,5º64,5º
Head tube length102mm110mm115mm125mm
Stand over height669mm725mm750mm790mm
Seat tube angle (effective)75º75º75º75º
Seat tube length360mm404mm456mm506mm
Actual top tube length607mm636mm664mm693
Effective top tube length610mm639mm667mm696mm
Wheelbase length1190mm1221mm1250mm1281mm
BB height323mm323mm323mm323mm
Chainstay length427mm427mm427mm427mm


Front trave150mm Nominal. Intended use: 140-160mm. Min / Max: 130mm-180mm
Wheel size and max width29" x 2.6" or 27.5" x 2.8"-3.0"
Dropout/Hub spec12 x 157mm
Seatpost diameter31.6mm
Seatpost insert depth300mm+
Dropper post rangeSize small & medium: 175mm drop; Size large and x-large 175mm - 210+mm drop
Headset44mm upper & 56mm lower
Post collar35mm
MaterialTitanium or Steel
Chainguide tabsISCG-05 (removable)
BB shell specs73mm / threaded
Chainline54-57mm with 55-56.5mm optimal
Rear brake tabsPost mount 160mm
Bottle mountsYes

Build kits

DeoreGXGX FactoryXT
ForkMarzocchi Z1 29” 150mm 44mm OffsetFox 36 29" Grip2 Performance Elite 150mm, 44mm offsetFox 36 29" Grip2 Factory 150mm, 44mm offsetFox 36 29" Grip2 Factory 150mm, 44mm offset
HeadsetFSA Orbit ZS44/56FSA Orbit ZS44/56FSA Orbit ZS44/56Cane Creek 40 ZS44/56
StemRaceFace Aeffect R 35mm x 40mmSpank 35mm x 40mmSpank 35mm x 40mmRaceFace Aeffect R 35mm x 40mm
HandlebarRaceFace Aeffect R 35x780mm, 20mm RiseSpank 35mm x 800mm, 25mm RiseSpank 35mm x 800mm, 25mm RiseRaceFace Next R 35mm x 800mm, 20mm Rise
GripsSpank / SDGSpank / SDGSpank / SDGChromag Basis Black
BrakeShimano Deore 4 Piston M6120Magura MT5Magura MT5Shimano XT 4 Piston M8120
RotorsShimano SLX 203mm / 180mm (6-Bolt) SM-RT66Magura Storm HC 203mm / 180mmMagura Storm HC 203mm / 180mmShimano XT 203mm / 180mm (6-Bolt) SM-RT76
ShifterShimano Deore 12spd M6100 (I-Spec EV)SRAM GX EagleSRAM GX EagleShimano XT 12spd M8100 (I-Spec EV)
Seat postSDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6
Seat collarKnollyKnollyKnollyKnolly
SaddleSDG Bel-Air V3SDG Bel-Air V3SDG Bel-Air V3Chromag Lynx DT
CranksetShimano SLX M7120 30T, 170mmSRAM GX Eagle 170 32T RingSRAM GX Eagle 170 32T Ring Shimano XT M8130 30T, 170mm
Bottom bracketShimano XT MT800 BSASRAM DUB BSA SB+ SRAM DUB BSA SB+Shimano XT MT800 BSA
DerailleurShimano Deore M6100 12spd, Shadow PlusSRAM GX EagleSRAM GX EagleShimano XT M8100 12spd, Shadow Plus
Cassette Shimano Deore M6100 12spd, 10-51T, Hyperglide+SRAM XG1275 Eagle 10-52TSRAM XG1275 Eagle 10-52TShimano XT M8100 12spd, 10-51T, Hyperglide+
ChainShimano Deore M6100SRAM GX EagleSRAM GX EagleShimano XT M8100
WheelsetDT Swiss M1900 SPLINE 28h Straight-Pull (MS)Spank Oozy Trail 345 HEX 32h J-Bend (XD) OR RaceFace Aeffect R 30 Trace 28h J-Bend (XD)Spank Oozy Trail 345 HEX 32h J-Bend (XD) OR RaceFace Aeffect R 30 Trace 28h J-Bend (XD)Spank Oozy Trail 345 HEX 32h J-Bend (MS)
Front tireMaxxis DHF 29" 2.5" 3C Maxx Terra EXOMaxxis DHF 29" 2.5" 3C Maxx Terra EXOMaxxis DHF 29" 2.5" 3C Maxx Terra EXOMaxxis DHF 29" 2.5" 3C Maxx Terra EXO
Rear tireMaxxis DHR2 29" 2.3" 3C Maxx Terra EXOMaxxis DHR2 29" 2.3" 3C Maxx Terra EXOMaxxis DHR2 29" 2.3" 3C Maxx Terra EXOMaxxis DHR2 29" 2.3" 3C Maxx Terra EXO