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EUROBIKE 2015 | Many cooks, one bike: The Alutech ICB2.0

Right on time for the start of EUROBIKE, the bike press was presented with the now fully developed Alutech ICB 2.0. This “Community Bike”, whose specifications were decided through crowdsourcing, can be pre-ordered online as a frameset from October. Deliveries are due to start at the beginning of next year.

In a long process consisting of questionnaires, compromise, mediation and real world testing, the 2nd Internet Community Bike in collaboration with Alutech and the engineer Stefan Stark has been designed and now presented. The result is a trail bike with 130mm travel at the rear and 130-160mm at the front which should cope with everything from home trails to bike parks.

IBC_2.0 (1 von 9)
BSA-Gewinde und Hinterbau mit Steckachse: Bei der Wahl der verwendeten Standards hielten sich die Entwickler an die Abstimmungsergebnisse der interessierten User.
BSA threaded BB and thru-axle at the rear: When choosing which standards to use, the developers kept to the results of the votes from interested users.
Der Dämpfer wird über einen aufwändig ausgefrästen Umlenkhebel angesteuert.
The shock is actuated via an intricately machined pivot arm

The geometry of the ICB 2.0 follows the principle “long and slack”: With its (for the travel) slack head angle of 66.5°, a long main triangle with low standover height, a compact rear end measuring 427.5mm and a steep seat tube angle, it corresponds more to what one would expect from full-blown 2015 enduro bikes. With the reduced travel it should provide a fun and lively ride. A conscious decision was made to keep the head tube length quite long at 130mm in order to keep the bars at a nice height and avoid the need for too many spacers between the head tube and the stem.

Geometry:

Size S M L XL
Top tube horiz. 588 mm 613 mm 637 mm 661 mm
Chainstays 427 mm 427 mm 427 mm 427 mm
Head angle 66,5° 66,5° 66,5° 66,5°
Seating angle (virt.) 74° 74° 74° 74°
BB drop 20 mm 20 mm 20 mm 20 mm
Seat tube 400mm 435mm 470mm 510mm
Reach 415 mm 435 mm 455 mm 475 mm
Stack 604 mm 622 mm 636 mm 650 mm
Ein massives Gusset soll in Kombination mit dem Tapered Steuerrohr für Steifigkeit und Stabilität an der Front sorgen.
A solid gusset and the tapered head tube should create stiffness and stability at the front end.
Die Vorspannung der Hauptlager kann unkompliziert eingestellt werden.
The pretension of the main bearing is simple to set
Die Leitungseingänge können auch als Zugklemmung bei externer Zugverlegung verwendet werden.
The entrances for the internal routing can also be used as clamps for external routing.

The standards used follow the more conservative wishes of the voters: a bottom bracket with BSA thread and a rear end using a 142mm x 12 axle are employed. A compromise was also made with the cable routing, allowing both internal and external routing. The bearings were chosen for ease of maintenance, with large 40mm bearings which can be easily pre-tensioned. There is also a front derailleur mount and one for a chain guide so that any individual set-up wishes can be met.

Das niedrige Oberrohr ist durch zwei Schmiedeteile mit dem bedeutend höher abschließenden Sitzrohr verbunden.
The low top tube is connected to the much higher seat tube using two forged parts
Um alle Aufbauoptionen zu ermöglichen, wurde auch eine Aufnahme für Umwerfer bzw. Kettenführungen realisiert.
To make any set-up wishes possible, a front derailleur and chain guide mount were also added.

For the moment, the ICB 2.0 will only be available as a frameset for a price of 1399 €, with pre-orders starting in October. Colour options are: titanium anodized/orange paint, raw anodized and blue/yellow/ red translucent (+200€). By providing a deposit of 50% of the sale price, customers can get a Rock Shox Monarch Plus DebonAir with the frame or with a 75% deposit a FOX FLOAT X. The first frames should be delivered in February 2016.

Further information is available here: crowd.bike.

Words: Martin Stöckl Pictures: Sebastian Hermann