A new generation of the meticulously machined Actofive I-Train mk2 aluminum trail bike lets MTB riders pick from 120-140mm of rear wheel travel and then fine-tune anti-squat to create their own perfect mountain bike. More travel, more adjustability, and more capable than ever. This second generation of Actofive’s full in-house CNC-machined aluminum mountain bike can be built into a lightweight downcountry bike or with a bit more burly build into a beast of a trail bike blurring into short-travel enduro for the capable rider…
ActoFive I-Train Mk2 versatile, adjustable CNC alloy Trail bike
Just over a year and a half ago, Actofive introduced the I-Train as a simplified shorter-travel and more affordable example of their beautifully precise CNC-machined mountain bike handiwork. Compared to the much more complex and longer travel variable high-pivot P-Train enduro bike, the I-Train was meant to be a more accessible bike, and a bike more suited to the type of riding most mountain bikers actually experience.
But now, with 15mm more travel in each of three settings, three different flip-chips to fine-tune suspension, wheelsize combos & ride height, plus an angle adjust headset… the limitations of what the new I-Train mk2 can do are kind of flying out the window. What you are left with is a bike that can adapt to almost any style of modern mountain biking.
Actofive calling this machine a short-travel trail bike seems to undersell what is clearly a capable tool in the right hands. I watched first-hand as Czech enduro racer Vojta Blaha rode his new I-Train mk2 to a Blinduro Podzim win on the bike’s first weekend racing after its debut at Bespoked, while most riders (myself included) raced the 2 days of steep, rocky & loose blind stages on much longer travel bikes.
Yet, Blaha had nothing but great things to say about the playful new bike… calling it a “Shred machine. The ultimate trail bike that you can pedal for 100km and then throw a DH track at it”.
What’ new?
The new all-29er I-Train Mk2 gains 15mm longer rear wheel travel, now reaching 120mm / 130mm / 140mm depending on your choice of rear shock. It’s simple plug-and-play according to Actofive, so you can always change travel down the road with a simple shock swap – no other parts/modifications required.
While the original I-Train used welded Nicolai seat & chainstays, now Actofive machines the entire bike in-house. The new stays feature intricately hollowed-out truss-like structures that you can see on their backsides. We got a preview of the new stays in our recent Actofive Factory Tour.
What’s really most unique about the new I-Train mk2 is its newfound adjustability, giving more options to fine-tune it for various styles of trail riding. It keeps the same 3-position ride height adjustment & angle adjustable headset cups.
But now adds the option for a 10mm shorter chainstay link for mullet builds AND a new 4-position suspension tuning flip-chip they’re calling Adjustable Pivot.
By minutely adjusting the height of the main pivot just above the bottom bracket users can significantly adjust the anti-squat response of the suspension, while fine-tuning the pedal kickback curve, as well. This lets riders easily adjust how lively or planted the bike feels to suit their riding & pedaling styles. Read our summary of Anti-Squat here if you want to learn more on why it is great to be able to adjust it to your preference.
The new bike also features more progressive geometry, inspired by its Enduro World Cup-racing P-Train sibling. Its headset is now a degree slacker at 65° (+/-1°), seattube a degree steeper at 78°, and frame Reach 5mm longer.
Perfect for fast and technical trail riding.
Tech details
- fully CNC-machined from 7075-T6 aluminum billet in Dresden, Germany
- two-piece hollow clamshell adhesive-bonded front triangle
- open machined seatstays & open machined chainstays with press-fit polymer bridge for tuned rear-end flex
- two-piece keyed & bolted-together aluminum rocker link
- 120, 130, or 140mm of 4-bar rear wheel travel via different shock stroke (190×45 or 210×50/55mm)
- matched to 130-150mm fork travel
- 4-position Adjustable (main) Pivot to tune suspension anti-squat characteristics
- 3-position bottom bracket drop settings: Low 43mm, Neutral 39mm, or High 36mm
- 2-position size-specific chainstay lengths: 437mm (S1/2) or 444mm (S3); adjustable -10mm for Mullet setup
- three Reach-based sizes: S1 455mm / S2 475mm / S3 505mm
- slack 65° headtube angle, adjustable +/-1° with eccentric headset cups
- steep 78° seattube angle
- full 29″ or Mullet wheel size combinations
- max 2.4″ tires
- UDH for SRAM T-type Transmission or conventional derailleurs
- 73mm BSA threaded bottom bracket with ISCG 05 tabs
- Boost 12x148mm thru-axle, PM 180 brake & 31.6mm seatpost
- bottle cage bosses on top & bottom of downtube, plus tool bag/carrier mount under toptube
- internal cable routing through main triangle (external routing optional)
- custom anti-noise chainstay protector & downtube guard
- 3300g frame weight (size S2, without shock)
- raw aluminum or several anodized colors available
Actofive I-Train Mk2 – Pricing, options & availability
The new Actofive I-Train Mk2 is available made-to-order as a frameset starting at 6000€ without a shock.
Once you hit the order button, Actofive’s Simon Metzner will work out exactly what you are looking for to customize your bike, including figuring out what the best shock is suited for your build… from a 420€ Fox Float to a 1079€ Intend Hover Opt and every coil or air option in between.
Then, once you put a 2/3 down payment, he’ll get to machining your bike. Frameset lead time is currently around 4-5 months. Custom complete Actofive I-Train Mk2 dream bike builds are also available. The sky is the limit, but complete pricing starts at 12,900€, and again Simon will help you build a one-of-a-kind shredder.
