JUMP TO SECTION Configure your Jeht check availability 0% finance options complete bikes from: £4,849 frames from: £2,999
| Jeht Matte Metal Grey size C1 | ORDER NOW |
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| Jeht Matte Metal Grey size C4 | ORDER NOW |
| Jeht Matte Metal Grey size C5 | ORDER NOW |
| Jeht A La Carte Colour size C1 | ORDER NOW |
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| Jeht A La Carte Colour size C5 | ORDER NOW |


You know that feeling when you hook up a perfect turn and the whole bike just tracks? The Jeht is built for that. It’s a dedicated mixed-wheel (mullet), made in Britain trail bike with 150mm rear travel and a 150–160mm fork, designed to carve through corners and feel the edge knobs bite.
Evolved Cotic Longshot geometry puts you in a “stand tall” position in the middle of the bike, with a planted front end that lets you commit. Reynolds 853 steel front end adds the supple, connected ride feel that decades of Cotic development have tuned.
New Cotic Rocklink takes everything we learned from our proven droplink design and makes room: A fully open front triangle and full dropper insertion, with the same supple, supportive, lively ride.
This isn’t a monstertruck that numbs the trail. It’s a rally car that dances and jinks, finding grip instead of grabbing brakes.
Why the Jeht?
Why Steel?
Steel on a full-suspension bike isn’t nostalgia. The Jeht’s front triangle is Reynolds 853 - with Cotic exclusive Ovalform top tube and dedicated down tube. It's a proprietary heat-treated steel strong enough to build light, with the compliance to give and go as the trail pushes back. That’s where the steel advantage comes from. Out back, a T45 steel seatstay and a 6082-T6 aluminium swingarm bring authority where you need it, and masses of tyre clearance.
Front triangle, seatstays, swingarm, CNC parts, 3D printed parts... all UK made, and then assembled right here at our HQ on the edge of the Peak District.
Radical Longshot geometry keeps the bike stable through the rough stuff, planted in the corners and pinpoint accurate in the steep tech.
Learn more...
Reynolds 853 builds a light, lively and fantastically robust front end using includes our custom ride tuned Ovalform top tube and exclusive HD seat tube. The down tube and seatstays are motorsport spec T45 roll cage tubing.
Rocklink suspension delivers 150mm of calm controlled rear travel, for traction and a fun interactive ride.
Pair with a 150mm fork for a trail build, a 160mm fork for enduro.
For that extra touch of individuality, you can now get our all our A La Carte custom paint choices on your Jeht.
We now have a Factory Collection option on the bikes. Come down to our base on the edge of the Peak District, and we will set up your bike, the suspension, fit pedals, get you all comfortable. Tick the Factory Collection check box on your order.
If you are in the UK, you can test ride a Jeht here at our HQ on the edge of the Peak District.
Look into a test ride...
We do things differently at Cotic. We assemble every single bike to order, and have loads of options for builds, so your Cotic is your dream bike.
Get in touch. Let's talk about your next bike...
Ride any of our products for 30 days and if you're not happy send it back for a full refund.
Find out more about our guarantee...
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| Frame size | Rider Height in centimetres | Rider Height in feet and inches |
|---|---|---|
| C5 | 184cm - 195cm | 6ft 0in - 6ft 5in |
| C4 | 182cm - 190cm | 5ft 11in - 6ft 3in |
| C3 | 176cm - 184cm | 5ft 9in - 6ft 0in |
| C2 | 170cm - 178cm | 5ft 7in - 5ft 10in |
| C1 | 162cm - 172cm | 5ft 4in - 5ft 8in |
Our new Cotic "C" Sizing tightens the gaps between sizing, and give you more options to size up or down as you wish.
Make sure you consider your leg length as well. If you upsize you might not be able to fit a longer dropper post due to the collar hitting the seat tube top or the dropper post bottoming out on the seat tube droplink pivot. Maximum seatpost insertion for calculating dropper post options is on the chart.
If you'd like to learn more about our mould breaking Longshot Geometry, Click Here
We don't develop our bikes around a specific fork offset, we find that it's simply a preference down to the individual rider. However, we prefer shorter offsets in the 42-44mm range and that's what we spec. If you'd like to learn more about this, Click Here
If you are unsure about that or anything else, drop us a line at size@cotic.co.uk and we'll be happy to discuss set up based on what you're riding at the moment and what seatpost you are planning to use.
150mm travel forks - dimensions in mm
| Frame Size | C1 | C2 | C3 | C4 | C5 | |
|---|---|---|---|---|---|---|
| Seat Tube (centre-top) |
A | 378 | 380 | 425 | 441 | 465 |
| Top Tube Length (effective) |
B | 595 | 616 | 635 | 653 | 674 |
| Head Angle | C | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | Effective Seat Angle (at 700 BB-saddle height) |
D | 76.5° | 76.5° | 76.5° | 77° | 77° |
| Effective Seat Angle (at 815 BB-saddle height) |
E | 76.3° | 76.3° | 76.3° | 76.7° | 76.7° |
| Chainstay Length | F | 450 | 450 | 450 | 456 | 456 |
| BB Drop (from front wheel) | G | 38 | 38 | 38 | 38 | 38 |
| Head Tube Length | H | 100 | 110 | 120 | 130 | 140 |
| Reach | I | 444 | 463 | 482 | 501 | 520 |
| Stack | J | 628 | 637 | 646 | 655 | 664 |
| Wheelbase | K | 1225 | 1248 | 1270 | 1300 | 1324 |
| Usual Height Range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm | |
| Stem Length | 25-45 | 25-45 | 25-45 | 25-45 | 25-45 | |
| Frame Wheel Travel | ||||||
| (55mm stroke shock) | 150 | 150 | 150 | 150 | 150 | |
| Wheel Size | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | |
| Max Rear Tyre Size | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | |
| Maximum Seatpost Insertion (including actuator mechanism) |
312 | 314 | 359 | 376 | 400 | |
| All measurements are static based on 150 travel fork. Seatpost Maximum insertion is guidance based on leaving 25 clear below the actuator for any hose or cable to route through our frames. Your post may need less. | ||||||
160mm travel forks - dimensions in mm
| Frame Size | C1 | C2 | C3 | C4 | C5 | |
|---|---|---|---|---|---|---|
| Seat Tube (centre-top) |
A | 378 | 380 | 425 | 441 | 465 |
| Top Tube Length (effective) |
B | 596 | 617 | 636 | 654 | 675 |
| Head Angle | C | 64° | 64° | 64° | 64° | 64° | Effective Seat Angle (at 700 BB-saddle height) |
D | 76° | 76° | 76° | 76.5° | 76.5° |
| Effective Seat Angle (at 815 BB-saddle height) |
E | 75.8° | 75.8° | 75.8° | 76.2° | 76.2° |
| Chainstay Length | F | 450 | 450 | 450 | 456 | 456 |
| BB Drop (from front wheel) | G | 34 | 34 | 34 | 34 | 34 |
| Head Tube Length | H | 100 | 110 | 120 | 130 | 140 |
| Reach | I | 438 | 457 | 476 | 495 | 514 |
| Stack | J | 633 | 642 | 651 | 660 | 669 |
| Wheelbase | K | 1231 | 1254 | 1276 | 1306 | 1330 |
| Usual Height Range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm | |
| Stem Length | 25-45 | 25-45 | 25-45 | 25-45 | 25-45 | |
| Frame Wheel Travel | ||||||
| (55mm stroke shock) | 150 | 150 | 150 | 150 | 150 | |
| Wheel Size | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | |
| Max Rear Tyre Size | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | |
| Maximum Seatpost Insertion (including actuator mechanism) |
312 | 314 | 359 | 376 | 400 | |
| All measurements are static based on 160 travel fork. Seatpost Maximum insertion is guidance based on leaving 25 clear below the actuator for any hose or cable to route through our frames. Your post may need less. | ||||||

150mm travel forks - dimensions in mm
| Frame Size | C1 | C2 | C3 | C4 | C5 | |
|---|---|---|---|---|---|---|
| Seat Tube (centre-top) |
A | 378 | 380 | 425 | 441 | 465 |
| Top Tube Length (effective) |
B | 595 | 616 | 635 | 653 | 674 |
| Head Angle | C | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° | Effective Seat Angle (at 700 BB-saddle height) |
D | 76.5° | 76.5° | 76.5° | 77° | 77° |
| Effective Seat Angle (at 815 BB-saddle height) |
E | 76.3° | 76.3° | 76.3° | 76.7° | 76.7° |
| Chainstay Length | F | 450 | 450 | 450 | 456 | 456 |
| BB Drop (from front wheel) | G | 38 | 38 | 38 | 38 | 38 |
| Head Tube Length | H | 100 | 110 | 120 | 130 | 140 |
| Reach | I | 444 | 463 | 482 | 501 | 520 |
| Stack | J | 628 | 637 | 646 | 655 | 664 |
| Wheelbase | K | 1225 | 1248 | 1270 | 1300 | 1324 |
| Usual Height Range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm | |
| Stem Length | 25-45 | 25-45 | 25-45 | 25-45 | 25-45 | |
| Frame Wheel Travel | ||||||
| (55mm stroke shock) | 150 | 150 | 150 | 150 | 150 | |
| Wheel Size | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | |
| Max Rear Tyre Size | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | |
| Maximum Seatpost Insertion (including actuator mechanism) |
312 | 314 | 359 | 376 | 400 | |
| All measurements are static based on 150 travel fork. Seatpost Maximum insertion is guidance based on leaving 25 clear below the actuator for any hose or cable to route through our frames. Your post may need less. | ||||||
160mm travel forks - dimensions in mm
| Frame Size | C1 | C2 | C3 | C4 | C5 | |
|---|---|---|---|---|---|---|
| Seat Tube (centre-top) |
A | 378 | 380 | 425 | 441 | 465 |
| Top Tube Length (effective) |
B | 596 | 617 | 636 | 654 | 675 |
| Head Angle | C | 64° | 64° | 64° | 64° | 64° | Effective Seat Angle (at 700 BB-saddle height) |
D | 76° | 76° | 76° | 76.5° | 76.5° |
| Effective Seat Angle (at 815 BB-saddle height) |
E | 75.8° | 75.8° | 75.8° | 76.2° | 76.2° |
| Chainstay Length | F | 450 | 450 | 450 | 456 | 456 |
| BB Drop (from front wheel) | G | 34 | 34 | 34 | 34 | 34 |
| Head Tube Length | H | 100 | 110 | 120 | 130 | 140 |
| Reach | I | 438 | 457 | 476 | 495 | 514 |
| Stack | J | 633 | 642 | 651 | 660 | 669 |
| Wheelbase | K | 1231 | 1254 | 1276 | 1306 | 1330 |
| Usual Height Range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm | |
| Stem Length | 25-45 | 25-45 | 25-45 | 25-45 | 25-45 | |
| Frame Wheel Travel | ||||||
| (55mm stroke shock) | 150 | 150 | 150 | 150 | 150 | |
| Wheel Size | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | 29"F/27.5"R | |
| Max Rear Tyre Size | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | 27.5 x 2.6" | |
| Maximum Seatpost Insertion (including actuator mechanism) |
312 | 314 | 359 | 376 | 400 | |
| All measurements are static based on 160 travel fork. Seatpost Maximum insertion is guidance based on leaving 25 clear below the actuator for any hose or cable to route through our frames. Your post may need less. | ||||||





Available as frame and shock from: £2999.
Complete bikes from: £4849
Bikes are now available worldwide, with free shipping to UK, Ireland and mainland Europe.
We have several levels of stock build which are based around our favourite parts in builds you can trust. We never specify anything we haven't ridden, tested and enjoyed. However, just about everything in your build can be customised to help with fit (contact us if you need help) or to personalise your bike. Want a different fork? Shock? Brakes? Wheels? Tyres? Bars? Stem? Longer drop seatpost? Women's saddle? Men's saddle? Colour matched Hope components? No problem. It's your bike.
All the bikes are assembled from a frame right here in the UK by us. We can do everything from bare frame to complete bike: Send us your favourite saddle and grips to fit. Send us your wheels if you have a nice pair you want to use. There's no point you getting kit you don't want. It's wasteful. That gives you almost limitless options to customise and tune your bike to your needs. If you can't see an option you'd like on the order form, get in touch. We all know it's good to head off piste sometimes!
Tap on a build title below to see the default specification and price for that build... then hit the 'CONFIGURE YOUR BIKE' button to see all the customisations you can make to the build. When you select your country at the bottom of the form, sales taxes (VAT), pricing and shipping will automatically update for you. Once you're happy, order your bike!
| headset | Cane Creek Headset 40 Series ZS44/EC44 |
|---|---|
| fork | Rock Shox Lyrik E1 Select Black - 150mm |
| shock | Rockshox Deluxe Ultimate 185x55 Trunnion |
| wheels | Halo Ridgeline 2 Mullet Microspline |
| disc brake | Pair of Shimano Deore M6200 brakes |
| disc brake | Pair of Shimano rotors 203/203 6bolt |
| groupset | Deore M6100 1x12 Drivetrain |
| chainset | Deore M6100 Chainset with 12 speed 32t chainring |
| bottom bracket | Shimano MT501 Deore Bottom Bracket |
| finishing kit | Cotic Lockon grips + WTB Rocket Cromoly Saddle |
| tyres | Schwalbe Romy Trail Soft/Mid 2.4 |
| handlebar | Cotic Calver HIGH Bars - 780 x 38 rise, 5deg up, 9deg back (black) |
| stem | Cotic SHORTERSTEM - 35mm |
| seatpost | SDG Tellis V2 31.6 Seatpost 170mm drop |
| price | £4849 |
Cotic frames are designed, developed, engineered and tested entirely by us at our base in the Peak District, near Sheffield in the UK. Our founder - Cy Turner - is the lead designer and engineer, and our frames are rigorously ride tested by everyone at Cotic and chosen test riders and ambassadors. They are fully certified and lab tested in excess of the requirements of ISO4210 safety standards.
For the Jeht Gen3 100% of the frame is made and sourced in the UK. The skilled guys at Five Land Bikes in Scotland manufacture the Reynolds 853 front triangles and T45 seatstays in small batches, to their exacting standards. The bespoke Cotic aluminium swingarm is fabricated in the midlands using parts CNC'd by Rotosteel. Almost every single frame part, components, nut and bolt is sourced and produced in the UK.
All the major steel parts of the frame are dip coated in manganese phosphate to prevent corrosion, before being painted using tough and durable automotive spec paint by the Five Land guys, or A La Carte custom colour by Black Cat Custom Paints. After they have completed their painstaking hand finishing process and their rigorous QC, the frame parts undergo further checking by us before assembly in the workshop at our HQ.
As always, all complete bikes are built to order by us here at Cotic, to the exact spec of your choice. We build your bike for you.
Seatpost diameter: 31.6mm. See geometry tables for maximum insertion.
Front Mech: Not applicable - 1x drivetrains only.
Fork: 29" Wheel, Maximum 160mm travel, 576mm axle-crown (without sag)
Rear Wheel: 27.5"/650B only. Maximum width 2.6". Maximum diameter 725mm
Bottom Bracket width: 73mm
Bottom Bracket thread: BSA Threaded
Chainline: 52mm or 55mm. Chainring sizes 26t to 34t
Chainguide Mounting: ISCG05
Headset: 44mm for Taper Steerer forks: Hope 2H, Cane Creek ZS44 Top/EC44 Bottom, Chris King Inset I7
Rear Hub: Boost148 x 12 bolt through
Rear Axle: Syntace X-12
Rear Mech Hanger: SRAM UDH
Shock: 185x55 Trunnion Mount - Air or Coil shock compatible
Shock Fittings: Trunnion Rocker, 30.0 x M8 Frame End
Dropper Post Routing: Internal via down tube port
Rear Brake Mounting: I.S. - Maximum 203mm diameter rear disc
With over 20 years of industry leading customer service, you know we've got your back.
All Cotic bikes are tough, durable and with regular maintenance will bring you many years of happy trails.
Click here to read our warranty.
Our support doesn't just end when your bike is delivered. We are always on the end of the phone or email whether you have had your Cotic for 10 minutes or 10 years. We'll always do our best to keep you rolling.
Our Owners/User manuals are downloadable using the following links: