Archive: Jeht Gen2
Years of production: 2023-2026
Preceded by the Jeht Gen1. See the current Jeht.
Not too little. Not too much. Just right. The second generation Jeht was our all-mountain trail bike: 140mm of travel, aggressive Longshot handling and a UK-made Reynolds 853 steel frame that brought the FlareMAX's charismatic, alive ride feel to bigger, more demanding terrain. The bike that took you from local evening blasts to high mountain days without asking you to compromise.
It had a muscular, purposeful feel: more planted and controlled than you might expect from steel, but never muffled or dead. The droplink suspension delivered traction and smoothness through the rough stuff, while the frame filtered out the fatiguing buzz on long, hard days. The handling was slack enough to commit fully on steep, technical descents, yet it pedalled efficiently and climbed with poise.
Finishes: Gloss Crimson and Matte Sage, plus our full A La Carte custom colour range.
Sizes: C1, C2, C3, C4 and C5. Wheels: 29", or 29" front / 27.5" rear mullet. Rear travel: 140mm.
What changed from Gen1
- Made in Britain: front triangle, CNC parts, painting and frame assembly all done in the UK, making the whole Cotic droplink range UK-made
- C-Sizing: five sizes (C1-C5), as on the FlareMAX and RocketMAX, for better fit, standover and dropper options, with size-specific seat angles
- Lower bottom bracket and more stack for better cornering grip and a more planted feel, with the head angle and rear centre unchanged
- Updated Reynolds 853 tubeset: a stiffer, stronger down tube at no extra weight, plus a BB brace tube for long-term durability
- More progressive suspension across all sizes for sensitivity and grip around sag, with larger sizes more progressive again to support heavier riders
- Second bottle mount under the down tube
- Enduro MAX bearings and Datatag security fitted as standard
Longshot geometry, steel and droplink
Longshot geometry keeps the bike stable through the rough stuff, planted in the corners and pinpoint accurate in the steep tech. Couple a super short 35mm stem to the optimised head angle and the bike pushes you on, looking for every stump to boost off, rock to gap and berm to rail, with incredible poise and composure.
Reynolds 853 builds a light, lively and robust front end, with our ride-tuned Ovalform top tube and our exclusive HD down tube. The steel construction is compliant and ground-moulding, extracting grip and feedback from the trail. The Jeht could be built as a full 29er for rolling speed and stability, or as a mullet with a 27.5" rear wheel for a lower BB, more standover and a more playful ride. Cotic droplink suspension is supportive and progressive, keeping the 140mm of travel lively and interactive, with grip on the descents and support and traction on the climbs.
Frame details
- Longshot geometry designed for super short 35mm stems
- Reynolds 853 Ovalform and Cotic exclusive HD down tube front end
- 44mm head tube with external bottom cup for taper steerers and zero stack top cup
- Custom Cotic 35mm Reynolds 853 seat tube for stiff support of the main suspension pivots
- 31.6mm seatpost, internal stealth dropper routing
- Integrated top guide on a threaded bottom bracket, plus ISCG05 lower tabs
- Rear mech cable routed internally through the steel seatstay
- Custom forged swingarm heads for stiffness and tyre clearance
- 6066-T6 aluminium swingarm with Syntace X-12 Boost 148 x 12mm rear axle
- 15mm BB pivots and a thru-axle-style droplink linkage clamp
- Two bottle mounts: one under the top tube, one under the down tube
- Tyre clearance: 29 x 2.5", or 27.5 x 2.8" rear as a mullet
- Optimised around 150mm forks, or 140mm for tighter trails
- Enduro MAX bearings
- Datatag security fitted as standard
- 140mm droplink rear travel
- Weight: Gold XT Trail build 14.1kg without pedals
Geometry
Cotic size guide
| Frame size | Rider height (cm) | Rider height (ft/in) |
|---|---|---|
| C1 | 162-172cm | 5ft 4in - 5ft 8in |
| C2 | 170-178cm | 5ft 7in - 5ft 10in |
| C3 | 176-184cm | 5ft 9in - 6ft 0in |
| C4 | 182-190cm | 5ft 11in - 6ft 3in |
| C5 | 184-195cm | 6ft 0in - 6ft 5in |
Longshot geometry means low, long frames with plenty of standover. We recommend the size for your height with a short 30-35mm stem. If you upsize, check your dropper will fit using the maximum seatpost insertion figures. We don't develop our bikes around a specific fork offset, though complete bikes came with a 44mm offset fork. Email size@cotic.co.uk for help.
150mm travel forks, 29er
| Frame size | C1 | C2 | C3 | C4 | C5 |
|---|---|---|---|---|---|
| Seat tube (centre-top) | 390mm | 417mm | 444mm | 471mm | 496mm |
| Top tube (effective) | 597mm | 619mm | 637mm | 658mm | 677mm |
| Head angle | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° |
| Seat angle (720mm saddle height) | 75.8° | 75.8° | 76.2° | 76.2° | 76.2° |
| Seat angle (815mm saddle height) | 75.5° | 75.5° | 75.9° | 75.9° | 75.9° |
| Chainstay length | 448mm | 448mm | 448mm | 448mm | 448mm |
| BB drop | -33mm | -33mm | -33mm | -33mm | -33mm |
| Head tube length | 100mm | 110mm | 120mm | 130mm | 130mm |
| Reach | 444mm | 462mm | 482mm | 501mm | 520mm |
| Stack | 623mm | 632mm | 641mm | 650mm | 650mm |
| Wheelbase | 1228mm | 1245mm | 1268mm | 1292mm | 1311mm |
| Usual height range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm |
| Stem length | 25-45mm | 25-45mm | 25-45mm | 25-45mm | 25-45mm |
| Frame wheel travel | 140mm | 140mm | 140mm | 140mm | 140mm |
| Wheel size | 29" | 29" | 29" | 29" | 29" |
| Maximum rear tyre size | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" |
| Maximum seatpost insertion (incl. actuator) | 194mm | 221mm | 249mm | 276mm | 300mm |
All measurements static, based on a 150mm travel fork (561mm static length). Maximum seatpost insertion leaves 25mm clear below the actuator for hose or cable routing; an externally routed dropper won’t need this margin.
150mm travel forks, 27.5" rear wheel (mullet)
| Frame size | C1 | C2 | C3 | C4 | C5 |
|---|---|---|---|---|---|
| Seat tube (centre-top) | 390mm | 417mm | 444mm | 471mm | 496mm |
| Top tube (effective) | 601mm | 623mm | 641mm | 662mm | 681mm |
| Head angle | 64.4° | 64.4° | 64.4° | 64.4° | 64.4° |
| Seat angle (720mm saddle height) | 74.7° | 74.7° | 75.1° | 75.1° | 75.1° |
| Seat angle (815mm saddle height) | 74.4° | 74.4° | 74.8° | 74.8° | 74.8° |
| Chainstay length | 448mm | 448mm | 448mm | 448mm | 448mm |
| BB drop | -43mm | -43mm | -43mm | -43mm | -43mm |
| Head tube length | 100mm | 110mm | 120mm | 130mm | 130mm |
| Reach | 432mm | 450mm | 470mm | 489mm | 508mm |
| Stack | 633mm | 642mm | 651mm | 660mm | 660mm |
| Wheelbase | 1218mm | 1235mm | 1258mm | 1282mm | 1301mm |
| Usual height range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm |
| Stem length | 25-45mm | 25-45mm | 25-45mm | 25-45mm | 25-45mm |
| Frame wheel travel | 140mm | 140mm | 140mm | 140mm | 140mm |
| Wheel size | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear |
| Maximum rear tyre size | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" |
| Maximum seatpost insertion (incl. actuator) | 194mm | 221mm | 249mm | 276mm | 300mm |
All measurements static, based on a 150mm travel fork (561mm static length).
140mm travel forks, 29er
| Frame size | C1 | C2 | C3 | C4 | C5 |
|---|---|---|---|---|---|
| Seat tube (centre-top) | 390mm | 417mm | 444mm | 471mm | 496mm |
| Top tube (effective) | 595mm | 617mm | 635mm | 656mm | 675mm |
| Head angle | 64.9° | 64.9° | 64.9° | 64.9° | 64.9° |
| Seat angle (720mm saddle height) | 76.2° | 76.2° | 76.6° | 76.6° | 76.6° |
| Seat angle (815mm saddle height) | 75.9° | 75.9° | 76.3° | 76.3° | 76.3° |
| Chainstay length | 448mm | 448mm | 448mm | 448mm | 448mm |
| BB drop | -36mm | -36mm | -36mm | -36mm | -36mm |
| Head tube length | 100mm | 110mm | 120mm | 130mm | 130mm |
| Reach | 448mm | 467mm | 486mm | 505mm | 524mm |
| Stack | 620mm | 629mm | 638mm | 647mm | 647mm |
| Wheelbase | 1224mm | 1241mm | 1264mm | 1288mm | 1307mm |
| Usual height range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm |
| Stem length | 25-45mm | 25-45mm | 25-45mm | 25-45mm | 25-45mm |
| Frame wheel travel | 140mm | 140mm | 140mm | 140mm | 140mm |
| Wheel size | 29" | 29" | 29" | 29" | 29" |
| Maximum rear tyre size | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" | 29 x 2.5" |
| Maximum seatpost insertion (incl. actuator) | 194mm | 221mm | 249mm | 276mm | 300mm |
All measurements static, based on a 140mm travel fork (551mm static length).
140mm travel forks, 27.5" rear wheel (mullet)
| Frame size | C1 | C2 | C3 | C4 | C5 |
|---|---|---|---|---|---|
| Seat tube (centre-top) | 390mm | 417mm | 444mm | 471mm | 496mm |
| Top tube (effective) | 600mm | 622mm | 640mm | 661mm | 680mm |
| Head angle | 64.8° | 64.8° | 64.8° | 64.8° | 64.8° |
| Seat angle (720mm saddle height) | 75.1° | 75.1° | 75.5° | 75.5° | 75.5° |
| Seat angle (815mm saddle height) | 74.8° | 74.8° | 75.2° | 75.2° | 75.2° |
| Chainstay length | 448mm | 448mm | 448mm | 448mm | 448mm |
| BB drop | -46mm | -46mm | -46mm | -46mm | -46mm |
| Head tube length | 100mm | 110mm | 120mm | 130mm | 130mm |
| Reach | 437mm | 455mm | 475mm | 494mm | 512mm |
| Stack | 629mm | 638mm | 647mm | 656mm | 656mm |
| Wheelbase | 1214mm | 1231mm | 1254mm | 1278mm | 1297mm |
| Usual height range | 162-172cm | 170-178cm | 176-184cm | 182-190cm | 184-195cm |
| Stem length | 25-45mm | 25-45mm | 25-45mm | 25-45mm | 25-45mm |
| Frame wheel travel | 140mm | 140mm | 140mm | 140mm | 140mm |
| Wheel size | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear | 29" front / 27.5" rear |
| Maximum rear tyre size | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" | 27.5 x 2.8" |
| Maximum seatpost insertion (incl. actuator) | 194mm | 221mm | 249mm | 276mm | 300mm |
All measurements static, based on a 140mm travel fork (551mm static length).
Component sizes
- Seatpost diameter: 31.6mm (375mm long minimum)
- Front mech: not applicable, 1x drivetrains only
- Fork: maximum 150mm travel, 563mm axle to crown (without sag)
- Bottom bracket: 73mm width, conventional English/BSA thread
- Chainline: 52mm Boost for up to 32t round or 30t oval chainring; 55mm for up to 36t round or 34t oval
- Chainguide mounting: ISCG05 bottom two tabs; integrated Cotic top guide included with frame or bike
- Headset: 44mm for taper steerer forks (Hope 2H, Cane Creek ZS44 top / EC44 bottom, Chris King InSet i7)
- Rear hub: Boost 148 x 12mm bolt-through
- Rear axle: Syntace X-12
- Rear mech hanger: Syntace X-12 Type 1 (conventional or Shimano direct mount)
- Shock: 210 x 55mm, air shock only
- Shock fittings: 20.0 x M8 down tube end, 24.0 x M8 seatstay end
- Dropper routing: stealth via the down tube
- Rear brake mount: IS, compatible with rotors up to 203mm
Setup guide
Cotic droplink suspension works best with 25-30% sag, and we prefer starting at 30%. With the 55mm stroke shock that means 15-16.5mm at the shock; we suggest starting around 15.5mm. For the fork, aim for 28-35mm sag on a 140mm fork (start around 32mm) or 30-37mm on a 150mm fork (start around 34mm).
To set shock sag, start with 170psi, turn off any lockout or climb switch, and put on your riding kit (including a full pack or bottles). With the saddle at full height, bounce on the saddle while riding, stop, slide the o-ring down to the seal, sit on the bike with your feet off the pedals, then get off carefully and measure. Adjust the air pressure to suit. For the fork, start a new fork at 60psi with compression at minimum, measure sag in a balanced standing position, then recheck the rear. Set up by sag, not by a generic pressure, because weight distribution differs between bikes.
Volume spacers: forks and shocks come set up for a rider of around 75kg. On the fork, add one spacer for every 10kg lighter than that, or remove one for every 10kg heavier (on a Cane Creek HELM, move the adjuster one step instead). Shocks are less sensitive to rider weight: add a spacer if you want more support, or remove one if you’re heavier and not using all the travel. There’s also a full sag setup video on YouTube.
Cane Creek DB Air IL (as delivered, counted from fully open): 2 large volume spacers, HSC 1.0 turns, LSC 6 clicks, HSR 1.0 turns, LSR 4 clicks
Cane Creek Kitsuma (as delivered, counted from fully open): 1.6 large volume spacers, HSC 0.75 turns, LSC 3 clicks, HSR 0.5 turns, LSR 1 click
Our base settings run on the lively, fast-rebound side, so you’ll probably need to run your fork a little faster than before to balance the feel. Give them a couple of rides before changing anything. For other shocks, start with rebound 3 clicks from open and compression or platform switched off, as droplink doesn't need a compression circuit to pedal well. On the fork, start with high-speed compression fully open and low-speed in the middle of its range, and add a volume reducer rather than more damping if you're using full travel too easily. Don't set rebound by bouncing the bike in the street; adjust on the trail, change one thing at a time, and keep notes of a base setup you can go back to.
Download the droplink owner's manual (PDF) · Download the general Cotic user manual (PDF)
Origin: made in Britain
Designed, developed, engineered and tested by us in the Peak District, with Cy Turner as lead designer and engineer, ride tested by everyone at Cotic and our test riders and ambassadors, and lab tested beyond ISO 4210.
The skilled team at Five Land Bikes in Scotland built the Reynolds 853 front triangles in small batches, then painted the frames in tough automotive-spec paint, with all the major parts manganese phosphate dip-coated against corrosion. The proven rear ends came from our Taiwan suppliers, as across the droplink range, and much of the remaining machining was done by Unite Components and Bear Frame Supplies. Every frame was checked again by us before assembly at our Peak District HQ, Datatag'd from the factory, and built up to order.
Reviews
Bike Perfect (4.5 stars, Gold XT build): called the Gen2 an outstanding steel trail bike that got even better: a superbly sorted, primarily UK-built trail charger that could tackle the toughest trails flat out, and an instantly engaging bike that stands apart from mainstream carbon and alloy frames. Read the Bike Perfect review.
BikeRadar (4.5 stars, custom Gold XT build): called the renewed Jeht a blast and ready for anything, praising the well-balanced suspension, great geometry and customisable builds. It climbed with calm composure, came alive downhill with smooth early-stroke suspension that carried speed over roots and chatter, and the new BB brace added stiffness without losing the sublime steel ride quality. The reviewer noted that prices had risen with UK production, but said it was a price he would happily pay. Read the BikeRadar review.
Photo gallery
