QUICK FACTS

➤ Riding style: XC / Downcountry / Trail
➤ 105mm / 115mm / 125mm /135mm rear wheel Travel
➤ 120-140mm front Suspension
➤ 455mm / 475mm / 505mm Reach
➤ 66° Head Angle, AR°-kit adjustable ± 1°
➤ 78° Seat Angle
➤ 437mm Chainstay Length
➤ 333mm BB Hight, ±4 mm Flip Chip adjustable
➤ MULLET ready (125mm / 135mm only)
➤ 2.900 g frame weight (excl. shock)
➤ anodized colors or raw aluminum
➤ Indeed, BEAUTY meets FUN MACHINE!

CNC MACHINED

We are experts in CNC. So why not machine to thin shell elements and bond them together by adhesive to achieve a lightweight hollow construction? The use of 7075-T6 aluminum leads to an excellent weight to strength ratio. It is thus not surprising that with 1.200 g, this main frame triangle beats lightweight records.

And by the way, we can make it look damn cool!

The I-TRAIN is the symbiosis of a CNC machined main frame triangle, CNC machined seatstays and handcrafted chainstay made by NICOLAI – the starting point of a long-term friendship with one of Germany´s leading bike manufacturers. For the perfect merge, we tailored geometries and kinematics to suit our style of riding – bet you´ll have a blast on it too!

ANODIZED ALUMINUM

At ACTOFIVE we love colors and we love to give free rein to your creativity when it comes to your dream bike. You can choose between different colors plus raw aluminum and combinations. Check out the configuration tool at the SHOP.

SHORT TRAVEL, FOR MANY REASONS!

Short travel means efficiency, agility and response – For us, there are so many reasons to ride short travel bikes. We love long days in the woods as well as quick sessions with maximum fun.

EFFICIENCY – The precisely designed four bar kinematics balances between a high anti-squat value and a favorable pedal kickback. In other words, if you push hard the bike feels firm. Getting loose, the suspension works sensitively, but with high support and a lively character.

FUN – Agility and response combined with low, long and mid-slack geometry. The I-TRAIN will be your best buddy for all types of terrain, even when it gets rowdy.

Oh, and it´s a monster in corners.

VERSATILE AND VARIABLE

The I-TRAIN offers various travel settings that make it a very versatile platform for all your riding. With 105mm, 115mm, 125mm and 135mm of rear wheel travel you can really dial in your favourite setup! All the below options are achieved with a separately available rocker and different shock lengths. Get in touch if you have any questions and we’ll help decide what’s best for you!

Just like our P-TRAIN, the I-TRAIN gets our Adjustable Ride° (AR°) headset system to enable you to adjust the headtube angle by one degree. This level of adjustment is huge, especially when paired with the versatility of the platform as a whole and the adjustable rear suspension travel!

Set the chassis height to NEUTRAL, HIGH and LOW with the included Flip Chips.

MULLET OPTION

Maximizing fun and maneuverability – The 125MM or 135MM rear travel options are designed for a MULLET Setup (29” front and 27,5” rear). And due to it´s leverage ratio, you can even mount a coil shock. Awesome!

BALANCED GEOMETRY

At ACTOFIVE we´re big fans of a low and balanced center of gravity. The long Reach values (470MM size S2) distribute the rider’s mass centrally into the chassis, which allows for a high stability on descents and loads of traction on the front wheel. The low Bottom Bracket Height makes wonders in corners and due to the low suspension travel it won’t bother you with pedal strikes. Playfulness and agility are achieved by short Chainstays and a moderate Head Angle. And did we mention the new I-TRAIN is a corner eatin` Monster?

STORAGE CONCEPT

What a cool new feature is this direct mount frame bag we offer with the I-TRAIN? It carries all you need for a quick session or gives extra storage for epic days in the woods. Oh, and it´s made locally by passionate people.

“…EVERY PART OF THE RIDE IS A GAME”

Vojtěch Bláha, CZ national enduro champ: “It’s not about waiting until you reach the top of the trail. On the I-TRAIN every part of the ride is a game! …The bike grips so well that sometimes I forgot I’m not on my enduro bike and went big anyway… That was wild!”

RIDER FOR RIDERS

Simon Metzner, CEO: “I am proud of being independent and free to pursue ideas that truly fascinate me as MTB rider. With my company METZNER Engineering Ltd., we´re experts in engineering and CNC machining. It’s great that ACTOFIVE is now the majority of our work. The I-TRAIN is the latest coup in the ACTOFIVE lineup and fulfills my personal dream of a light and fast CNC bike – and by the way, this is the lightest CNC frame on earth! I love my I-TRAIN for all-day-epic, trail focused rides and as the perfect complement for my big hitting P-TRAIN. With its variability, it offers me the perfect platform to test different setups, because I’m really into experimenting. Right at my local riding spots, it reawakens mellow trails to new life – bet you´ll have a blast on it too!”

SPEC SHEET

Riding style XC / Downcountry / Trail

Material CNC-machined from solid aluminum 7075-T6

Design Two-piece hollow construction, bonded with adhesive

Rear end four bar system, handcrafted by NICOLAI

Travel rear 105 / 115 (190×45 Shock); 125 (MULLET only); 135 (MULLET only) [mm]

Travel front 120 – 140 [mm]

Max. wheel size ≈ 29“x 2,4“

AR° geometry setup BB Height/ Travel/ MULLET/ Head Angle

Rear axle RockShox Maxle 12×148(BOOST) [mm]

Derailleur interface SRAM UDH

Headset IS41/28.6 – IS52/40 [mm]

Seat tube inner Ø 31,6 mm

Seat clamp Ø 34,9 mm

Max. insert seatpost S: 240 / M: 270 / L: 300 [mm]

Shock length 190 x 45 metric / 210 x 50 metric [mm]

Shock hardware 22,2×8 mm

Brake mount PM 180

BB-type 73mm BSA, ISCG 05 mount

Cable routing internal, external or mixed

Bottle mount 1 x Downtube topside + 1x Toptube bottomside

Weight 2.900 g (S2, w/o shock)

Colors Raw or anodized in colors

Shock options COIL or AIR

Sizes S1, S2, S3

GEOMETRY

Geometry modification by Flip Chip:
Head Angle / Seat Angle +0.3° for HIGH
Head Angle / Seat Angle -0.3° for LOW
Geometry change for 140MM front suspension:
Head Angle / Seat Angle -0.45°
BB Height +3MM
Geometry change for 120MM front suspension:
Head Angle / Seat Angle +0.45°
BB Height -3MM

KINEMATICS