Design history
2003
Forged aluminum cranks
15 mm axle in steel treated to 120 kg
2004
New forged aluminum cranks
17 mm axle in steel treated to 150 kg
2005
Forged aluminum cranks, machined and reinforced with a carbon coating
17 mm axle in steel treated to 150 kg
2015
Brand new design
New forged, machined aluminum cranks
25 mm titanium axle - grade 5
