£1,999. That is the whole story, and also not the story at all. Nukeproof revealed the Tracker FS at Eurobike in July 2026 with a single spec, a single colour (black), and a price that undercuts almost every alloy enduro bike from a name-brand you can currently walk into a shop and buy. The company called it “our answer to one of the biggest issues in the industry right now,” and everyone in mountain biking knows what that issue is: bikes cost too much.
What makes the Tracker FS worth a geometry breakdown rather than just a price alert is what sits underneath the parts spec. Nukeproof did not draw a new, cheaper frame. It took the geometry and suspension kinematics of the Mega, its Enduro World Series winning platform, and rebuilt them in plainer tubing. The chart is the same. The pivot locations are the same. The £2,000 you are looking at buys the exact numbers that put riders on World Cup podiums, minus the hydroformed top tube and the boutique componentry.
Mega kinematics, half the Mega price
Context matters here. Nukeproof spent 2024 and 2025 in limbo after Frasers Group sold the brand; the Belgian Cycling Factory (the outfit behind Ridley) picked it up, and the brand has spent the past year rebuilding, returning to World Cup racing with Axess Racing along the way. The Tracker FS is the clearest statement yet of what the relaunched Nukeproof intends to be: the value brand that gives you race geometry without the race-team invoice.
The Mega Alloy, the bike this frame is cloned from, retails from around £4,499. The Tracker FS lands at £1,999. Nukeproof did not achieve that by softening the geometry into something friendlier and slower. It kept the aggressive chart intact and found the savings elsewhere, which is the honest and correct way to build a cheap enduro bike. A slack, long, low frame with a proven leverage curve is the part you cannot fake with a cheaper shock later. The parts, you can upgrade over time.
The frame is 6061-T6 aluminium running a mullet setup: a 29 inch wheel up front, a 27.5 inch out back. Travel is 165mm rear and a 170mm fork, which is squarely modern enduro. Claimed weight is 17.2kg (37.9lb) for a medium with tubes and no pedals, heavy on paper but unsurprising for an alloy enduro bike at this price, and the kind of number that drops fast once you go tubeless and swap a few contact points.
The geometry Nukeproof kept
Here is the full chart. These figures mirror the Mega Alloy 297, because that is precisely the point of the exercise.
| Size | Reach (mm) | Stack (mm) | Head Angle | Seat Angle | Chainstay (mm) | BB Height (mm) |
|---|---|---|---|---|---|---|
| S | 430 | 621 | 64° | 77.5° | 435 | 343 |
| M | 455 | 621 | 64° | 77.5° | 435 | 343 |
| L | 475 | 639 | 64° | 78° | 435 | 343 |
| XL | 495 | 648 | 64° | 78° | 435 | 343 |
| XXL | 515 | 657 | 64° | 78° | 435 | 343 |
Front and centre: a 64 degree head angle across every size, a 77.5 to 78 degree effective seat angle that steepens as the frames get longer, and a 435mm chainstay held constant from S to XXL. Reach runs from 430mm on the small to a genuinely large 515mm on the XXL. Bottom bracket height sits at 343mm.
If you have read a modern enduro geometry chart in the past two years, none of these numbers will shock you, and that is the compliment. The Tracker FS is not experimenting. It is delivering the settled 2026 enduro consensus (a head angle in the low 64s, a seat angle near 78, reach numbers that stretch into the 500s at the top of the range) at a price where riders normally have to accept slacker seat angles, shorter reach, or a wandering front end. For a refresher on why those specific numbers ended up as the standard, our breakdown of what each geometry figure changes on the trail walks through it measurement by measurement.
What 64 degrees and 435mm chainstays do on trail
A 64 degree head angle is squarely in enduro territory: slack enough to stay composed on steep, fast, chunky descents, without tipping into the 63 degree and slacker range where the front wheel starts flopping at low speed on climbs. Paired with a 170mm fork and the mullet front, it should feel planted through rough sections and stable at speed, which is the whole job description of a bike like this.
The 435mm chainstay is the number I would keep an eye on, and it is the one honest compromise in the chart. Holding it constant across five sizes means the small rides with a rear centre that suits its short front, while the XXL, with its 515mm reach, carries the same 435mm out back. On the biggest frame the weight distribution tips slightly rearward relative to the front, so an XXL rider has to be a touch more deliberate about weighting the front wheel in flat corners. This is the standard tradeoff of a non size-specific rear end, and at £1,999 it is an entirely reasonable place to spend the compromise. Size-specific chainstays are still mostly a feature of frames costing two to three times this much.
The 78 degree seat angle on the L, XL and XXL is the quietly important number. It puts your hips over the bottom bracket on climbs, which keeps the front wheel down and stops the long reach from turning every fire-road grind into a chore. Five years ago a sub-£2,000 enduro bike would have shipped with a 74 or 75 degree seat angle and climbed like it was towing an anchor. The steeper number is the single biggest reason a long, slack bike can now also be a bike you pedal uphill all day.
Where the money was saved
Nukeproof was refreshingly open about what got cut. The Tracker FS does not have the Mega’s intricate hydroformed top tube or its machined suspension yokes; the tubing is simpler and heavier, which is where a chunk of the weight and most of the cost went. What it keeps are the parts that define how the bike rides: the pivot points, the leverage curve, and the geometry.
The build reflects the price honestly rather than hiding weak spots. Suspension is a 170mm RockShox Domain fork and a RockShox Deluxe Select R air shock, both entry-level but genuinely capable units that a lot of far pricier bikes also run. Braking is SRAM’s four-piston hydraulic stoppers on 200mm front and 180mm rear rotors, which is correct for an enduro bike and not always a given at this price. The drivetrain is Shimano Deore 12-speed, the workhorse groupset that shifts nearly as well as anything above it and costs a fraction to replace. Rolling stock is WTB ST i30 Tough rims on Shimano hubs wrapped in Schwalbe Magic Mary tyres, with an X-Fusion Manic dropper and Nukeproof’s own alloy cockpit.
None of that is exotic. All of it works, and every piece is cheap and standard to replace or upgrade as it wears. That is the smarter way to spend a tight budget: a frame with race geometry you will keep for years, hung with parts you can improve one at a time. And it ships with Nukeproof’s lifetime frame warranty, transferable to a second owner, which is a meaningful signal on a budget frame.
Sizing, and a note for tall riders
As someone who rides at 6 foot 4, I pay close attention to the top of a size range, because it is usually where budget bikes quietly give up. Plenty of affordable enduro bikes stop at XL and cap reach in the 480s, which leaves tall riders either overstretched on the biggest available frame or shopping in a higher price bracket entirely.
The Tracker FS goes to XXL at 515mm reach and 657mm stack, and it does it at £1,999. That is rare. For riders around 6 foot 3 and up, this is one of very few bikes that offers a properly long front centre without a properly long price. The tradeoff, again, is that fixed 435mm chainstay: on the XXL you will want to consciously drive the front wheel in flatter turns, and some tall riders may eventually fit a slightly longer offset bushing or simply adapt their body position. It is a manageable quirk, not a dealbreaker.
For the sizing itself, the reach jumps are sensible. A rider between sizes who likes a roomy, stable bike can size up and lean on the steep seat angle to keep the climbing position workable; a rider who prefers a flickable, playful feel can size down without ending up cramped, because even the medium carries a modern 455mm reach. If you are new to reading these numbers against your own height, our guide to matching frame reach to rider size is a useful starting point.
How it lands against the Mega and the rest of the field
Inside Nukeproof’s own lineup, the Tracker FS sits below the Mega Alloy and Mega Carbon as the accessible entry into 165mm enduro, and it deliberately shares their DNA rather than being a watered-down alternative. If your budget reaches the Mega Alloy, you get lighter, more refined tubing and a nicer parts kit for the extra money. If it does not, the Tracker FS gives you the identical geometry and suspension character for less than half the outlay, which is a genuinely unusual proposition.
Against the wider £2,000 enduro field, the pitch is simple and strong: most rivals at this price are either older platforms with slacker seat angles and dated geometry, or house-brand bikes that hit the number by softening the chart. The Tracker FS hits it while carrying the full modern enduro geometry package and a race-proven kinematic, and it stretches that offer all the way up to an XXL that taller riders can actually fit. The 2026 enduro category has been converging on this exact geometry recipe for a while, a trend we tracked in our look at where mountain bike geometry is heading in 2026; the news here is that the recipe finally showed up on a bike almost anyone can afford.
Whether the Tracker FS rides as well as its chart suggests will come down to how the entry-level suspension and the alloy frame behave once the trails get truly rough, and that is a question for a full test rather than a spec sheet. But geometry is the part you cannot buy back later, and on that measure Nukeproof did not cut a single corner. For £1,999, that is the right thing to have refused to compromise.