THE I-TRAIN DNA

➤ Riding style: Downcountry / Trail
➤ Completely CNC machined from billet 7075-T6 alumninum
➤ Wheelsizes 32″, 29″ and all Mullet options
➤ 120mm / 130mm / 140mm rear wheel travel
➤ Plug&Play travel setup with different shock lenghts
➤ SRAM UDH derailleur hanger and Transmission-ready
➤ Versatile and variable
➤ ADJUSTABLE PIVOT° – Adjustable Anti squat
➤ Fine-tuned geometry and kinematics
➤ Indeed, BEAUTY meets FUN MACHINE!

WHEEL SIZE MATTERS

We believe that your bike should be perfectly matched to your dimensions and your riding. That’s why the I-TRAIN platform is designed to offer maximum versatility and the different wheel sizes 29”, 32” and all Mullet options.

THE I-TRAIN 32 IS HERE!

We developed the I-TRAIN 32 as a no-compromise 32-inch machine – Ready to Shred! The geometry has been dialed in 100% for the 32-inch wheels, but it still carries the DNA of the 29-inch I-TRAIN. This means it’s not just a straight-up XC-racer; it’s a true Trail Bike.
All the rider contact points have been kept analogues to the 29-inch I-TRAIN. To pull this off, we engineered and manufactured an optional, proprietary stem from the ground up. The entire frame structure has been optimized for increased loads, such as those resulting from longer forks, a shorter head tube, and a longer rear end.

QUICK FACTS

➤ Wheelsizes: 32″ / 29″ / 32″ Mullet / 29″ Mullet
➤ 120mm / 130mm / 140mm rear wheel travel
➤ Plug&Play travel setup with different shock lenghts
➤ 130-150mm front Suspension (29″ only)
➤ 120-140mm front Suspension (32″ only)
➤ 455mm / 475mm / 505mm effective Reach (29″ only)
➤ 485mm / 525mm effective Reach (32″ only)
➤ 65° Head Angle, AR°-kit adjustable ± 1°
➤ 333mm BB Heigth, adjustble
➤ Mullet ready (29/27,5 or 32/29)
➤ 3.300 g frame weight (excl. shock, 29″ only)
➤ 3.550 g frame weight (excl. shock, 32″ only)

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 1.400 g, this main frame triangle beats lightweight records. And by the way, we can make it look damn cool!

The I-TRAIN MK2 is now completed by CNC machined seatstays and chainstays, which make the frame look virtually fashioned from one piece.

VERSATILE AND VARIABLE

The I-TRAIN offers various travel settings that make it a very versatile platform for all your riding. With 120mm, 130mm, and 140mm of rear wheel travel you can really dial in your favourite setup! All the below options are achieved with just using different shock lengths. It works plug&play, no rocker or frame modifcation is neccessary! And due to it´s leverage ratio, you can even mount a coil shock. Awesome!

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!

With the included Flip Chips you can set the chassis height to Neutral, High and Low. Get in touch if you have any questions and we’ll help decide what’s best for you!

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.

MULLET OPTION

Maximizing fun and maneuverability –  By exchanging the setting elements of the Chain Stay you can easy convert from 29″ or 32″ to Mullet. It works for all travel options.

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!”

Photo: Falco Schaffrath

SPEC SHEET

Model I-TRAIN MK2

Riding style Downcountry / Trail

Material CNC-machined from solid aluminum 7075-T6

Design Two-piece hollow construction, bonded with adhesive

Rear end four bar system, completely CNC-machined

Travel rear 120 (190×45 Shock); 130 (210×50 Shock); 140 (210×55 Shock) [mm]

Travel front 130 – 150 [mm]

Max. wheel size ≈ 29“x 2,4“

AR° geometry setup BB Height/ Travel/ Mullet/ Head Angle/ Anti-squat

Rear axle ACTOFIVE M12x1, Lenght 179 [mm]

Derailleur interface SRAM UDH derailleur hanger and Transmission-ready

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 / 210 x 55 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 3.300 g (S2, w/o shock)

Colors Raw or anodized in colors

Shock options COIL or AIR

Sizes S1, S2, S3

GEOMETRY 29″ PLATFORM

Geometry base configuration:
Rear Travel: 120 / 130 / 140mm (The geometry is not changed by the travel settings)
Front Travel: 140mm
29″ wheels

Change in geometry through the Flip Chip:
Flip Chip LOW: Head Angle / Seat Angle -0.3°; BB Height -4mm
Flip Chip MEDIUM: Head Angle / Seat Angle ±0°; BB Height ±0mm
Flip Chip HIGH: Head Angle / Seat Angle +0.3°; BB Height +4mm

Change in geometry through Front Travel:
Fork Lenght +10mm:  Head Angle / Seat Angle -0.45° ; BB Height +3mm; Reach -3mm
Fork Lenght -10mm: Head Angle / Seat Angle +0.45°; BB Height -3mm; Reach +3mm

Change in geometry through the Mullet setup:
Chainstay Length -10mm (other geometries are not changed by the mullet setup)

GEOMETRY 32″ PLATFORM

Effective Reach vs. Real Reach:
We believe an effective reach measurement is essential for proper comparison, as the increased stack significantly alters the way the bike feels to the rider compared to the raw real reach number.

Geometry base configuration:
Rear Travel: 120 / 130 / 140mm (The geometry is not changed by the travel settings)
Front Travel: 130mm
32″ wheels

Change in geometry through the Flip Chip:
Flip Chip LOW: Head Angle / Seat Angle -0.4°; BB Height -5,5mm
Flip Chip MEDIUM: Head Angle / Seat Angle ±0°; BB Height ±0mm
Flip Chip HIGH: Head Angle / Seat Angle +0.4°; BB Height +5,5mm

Change in geometry through Front Travel:
Fork Lenght +10mm:  Head Angle / Seat Angle -0.45° ; BB Height +3mm; Reach -3mm
Fork Lenght -10mm: Head Angle / Seat Angle +0.45°; BB Height -3mm; Reach +3mm

Change in geometry through the Mullet setup (32/29):
Horizontal Chainstay Length -15mm (other geometries are not changed by the mullet setup)

KINEMATICS