New 32" MTB for sale with giant DT Swiss wheels

After the model presented by Stoll, ready for sale, the trend for 32 inches does not stop. Now it is the brand Actofive that has presented its I-Train 32, a downcountry and Trail MTB ready for real production and designed for those who want to ride faster, more stable, and with more absorption capacity. And yes, it can already be reserved.

The Actofive I-Train 32 pushes giant wheels beyond XC and opens new territory for modern Trail

The small German brand, specializing in CNC machined frames, becomes the first manufacturer to launch a dual suspension with 120-140 mm travel aimed at Downcountry/Trail with 32” wheels. A move that comes after working closely with DT Swiss on the development of specific wheels and is now materialized in a frame that tests what we thought we knew about geometry, wheel sizes, and kinematics.

Although it inherits the DNA of the 29” I-Train, the new frame is completely different in key areas. Actofive has reinforced the front triangle, redesigned the stays, and modified the chainstay junction to support the greater loads of a 32” diameter, in addition to accommodating the extra demands of a longer fork and a lower head angle.

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The result is a fully machined 7075 aluminum frame, two halves that are milled for 24 hours and then assembled, extremely precise and with a level of finish that explains why the frame starts at €6,990, without shock.

Despite the XXL rear wheel, it maintains a Boost rear, 73 mm BSA bottom bracket, ISCG05 mounts, and internal, external, or mixed cable routing. All this with only 250 g more than the 29” version, an achievement for a frame that weighs around 3.5 kg in size S2.

Geometry: how to fit 32” without breaking the modern Trail position concept

The biggest challenge of a 32” MTB is ergonomics. To ensure the I-Train 32 maintains the same riding position as the 29” I-Train, Actofive has opted for a shorter head tube, a higher stack, and a specific negative stem included in the frame (60 mm length, -40 mm drop).

This way, the user does not perceive a “high” posture despite the wheel adding more than six centimeters in height compared to a 29”.

The base geometry, with a 130 mm fork and 32” wheels, is as follows:

• Head angle: 65°
• Seat angle: 77.5°
• Bottom bracket height: 333 mm
• Chainstay length: 458.5 mm (or 443.5 mm if a mullet 32/29 is mounted)

The bike includes the now-standard flip-chip system with three chassis heights and a variation of plus/minus 0.4° in angles, as well as adjustable kinematics with four main pivot positions to modify antisquat and kickback.

Actofive will offer two sizes, S2 and S3. There will be no S1, as Metzner himself acknowledges that a 32” wheel limits the freedom of movement for shorter riders.

Trail Suspension: 120, 130, or 140 mm and mullet option for those seeking more travel

The I-Train 32 is designed for fast Trail or Downcountry, but retains the versatility of the I-Train family:

• 120 mm: 190 x 45 mm shock
• 130 mm: 210 x 50 mm
• 140 mm: 210 x 55 mm (mullet only for space reasons)

For the drivetrain, the brand insists that the ideal standard could be a 30-tooth chainring, as the larger wheel diameter increases the gear ratios.

First impressions: faster, more stable, and surprisingly agile

Simon Metzner himself, CEO of the brand, has already ridden several weeks with his prototype and assures that the change in wheel size does not penalize as much as one might expect:

“The bike gains speed on rough terrain with less effort and maintains inertia incredibly. In technical sections, it conveys a lot of confidence, and despite the larger diameter, I haven’t felt significant losses in agility.”

However, he warns that adapting to very steep descents takes some time and that shorter riders might occasionally notice contact with the rear wheel when moving the bike aggressively.

Prices and availability (with waiting list)

Orders are now open. Each frame is made to order at the brand's headquarters in Dresden, and the current lead time is 4 to 5 months. The frame costs €6,990 (without shock or stem) + €300 for the specific stem.

Finishes can be customized through anodizing and 32/29 mullet options.

The biggest brake right now is not the frame, but the availability of 32” components: forks, tires, and wheels are still in the validation phase by manufacturers like DT Swiss, Astral, or Bike Ahead.

Actofive has not only created a bike to test a trend: it has launched a real product, with a well-thought-out geometry and a fully functional Trail platform. And the most revealing thing is that Metzner does not rule out that 32 inches will find a place beyond XC: downcountry, bikepacking, gravel, and perhaps even enduro in mullet format.

What is clear is that 2026 will be a decisive year in the rise of a new standard that no longer sounds like an experiment, but a reality.