Whyte Syphon S

The Whyte Syphon S is a £2,199 alloy full-suspension trail bike for riders who want one capable machine for trail-centre laps, technical singletrack and long off-road days, without stepping into enduro weight, travel or cost. It is not electric: you pedal a mechanical Shimano Deore M6100 1x12 drivetrain, with no motor or battery. Size S even gets its own mixed-wheel layout, so shorter riders are not simply handed a pair of shrunken 29in wheels.

It is the current UK model, sold in one equipment build and two gloss colours - raw silver and aquamarine - that are mechanically identical.

Whyte Syphon S prices and retailer offers

Either colour carries the same £2,199 official original UK RRP. That money buys a RockShox Pike Base fork, a custom-tuned Deluxe Select RT shock, Deore M6100 1x12 gearing, TRP EVO Comp four-piston brakes, a TranzX dropper and fibre-reinforced composite platform pedals. You can ride it without buying pedals first, though many people later fit a pair that matches their shoes.

What is the latest Whyte Syphon S?

Syphon replaces the T-140 as Whyte's full-suspension trail platform. Whyte has not given it an official model year, so the name to shop with is Syphon S rather than a year on a retailer ticket. There is only one equipment level.

You get a 6061 hydroformed T6 multi-butted alloy frame with proportional sizing, frame protection and sealed cable and hose ports. Quad-Link 4 suspension delivers 140mm of travel from the Pike Base and 135mm at the rear through the Deluxe Select RT, and Shape.It provides high and low geometry positions. This is Whyte's Category 3 trail and down-country bike, not a Category 4 enduro or bike-park platform.

Frame, sizing and likely trail character

Whyte grows reach and rear centres with each size rather than hanging the same back end on every frame, so you should stay centred between the wheels from the compact Small through Extra Large. Small is a different stock bike in more than length: it arrives as an MX setup with a 29in front wheel and 27.5in rear, 160mm cranks and a 150mm dropper. That mixed-wheel layout cannot be turned into a full 29er.

Medium, Large and Extra Large come with two 29in wheels, 165mm cranks and 170mm droppers. Those three sizes can be converted to MX, but the dedicated Shape.It link and a 27.5in rear wheel are extra purchases, not parts in the box.

Shape.It is a high and low geometry flip. Moving to low slackens the head angle by 0.6 degrees and drops the bottom bracket by 8mm, which should add composure on steep, technical descents. Leave it in high when you want more ground clearance and a practical pedalling stance for longer days with more climbing. The change biases the same trail bike; it does not create an enduro platform.

Slack head angles, long wheelbases, four-piston TRP EVO Comp brakes and a 203mm front rotor point to a stable trail stance rather than a twitchy cross-country one. Whyte describes Quad-Link 4 as responsive and efficient, and the 30T chainring with a 10-51T cassette gives a genuinely low climbing gear for steep or loose hills. Schwalbe Albert Radial 2.5in tyres, Super Soft up front and Soft at the rear, should hold in mud and on roots; they will likely feel slower on easy hardpack and road links than a lighter trail tyre.

High-volume radial tyres plus the 140mm front and 135mm rear travel should take the edge off repeated roots and chatter more effectively than a hardtail, especially as the hours add up. Whyte's Category 3 guidance still applies: technical trails and trail-centre riding, with drops of 61cm or less. Regular enduro racing, larger features and hard bike-park laps call for a more aggressive bike.

UK durability, servicing and ownership

Sealed cable and hose ports, protected frame areas and pivot bearings packed with marine grease are aimed at British weather. They should keep water and grit out of the places that usually seize up after a winter of muddy riding. A BSA 73mm threaded bottom bracket, mechanical Deore gears and mainstream Boost axles also make routine workshop work relatively straightforward.

You still need to wash the bike and service the suspension; the sealing just makes winter less brutal on the hardware. The Whyte Trail rims are tubeless-ready, but the specification does not confirm that sealant is installed at handover, so run tubes until that setup is finished. Chainguide mounts are on the frame, with no guide supplied - worth adding if you ride particularly rough trails, otherwise skip it.

Original owners get lifetime extended cover on the frame and pivot bearings if the bike is registered within 28 days of purchase. Fitted components keep their own warranty terms. No complete-bike weight is published, which will matter if you are chasing a particularly light trail bike. Combined rider and luggage weights approaching 120kg should be checked against the model-specific limit on the CE marking or manual.

RockShox fits the Pike Base with its Rush RC damper, the value-focused internal. A compatible Charger 3.1 RC2 damper kit is a later route to more adjustment without buying a whole new fork, at the cost of parts and workshop time. Get sag and rebound right first rather than assuming you need new internals.

Whyte Syphon S versus the previous T-140

The 2024 Whyte T-140 S is the previous generation, not a last-year Syphon with a new sticker. It shared the same 140mm front and 135mm rear travel, but used older geometry, a 435mm rear centre on every size and full 29in wheels throughout. The Syphon adds proportional geometry and rear-centre lengths, gives Small a stock MX setup, and updates the suspension, brakes, tyres and dropper.

Older T-140 listings belong to that earlier frame, so their geometry and kit should not be read across onto a current Syphon S.

Weekend trail-centre sessions, rooty woodland loops and all-day hill rides are what the Whyte Syphon S is for. Size-specific handling, powerful brakes, grippy tyres and a weather-minded alloy chassis, with pedals included, add up to a coherent package at £2,199. For someone who wants full-suspension composure on British trails without enduro bulk, it is a satisfying bike to buy and one that should make it easier to ride more often.