New Improved Model More Reliable
PowerCranks are an innovative device used successfully by a wide range of athletes, from recreational to professional, in rehabilitation, prehab, training and racing in many sports and disciplines in which co-ordination and strength are a must.
PowerCranks are independent bicycle cranks that replace the regular cranks found on a typical bicycle or exercise machine. A patented training tool, PowerCranks integrate a one-way clutch in each crank arm so each drives the chain but not each other.
The idea is similar to completing one-legged drills, with each leg working independently.
As such, one leg cannot help the other to make the pedals go around, so in order to pedal the bike one must actively raise each pedal using the hip flexor and hamstring muscles, which are generally undertrained muscles in most athletes. Whether done correctly or incorrectly, this provides the rider with feedback.
Many of the world’s best cyclists have trained with PowerCranks including Cadel Evans, Neils Albert, Paolo Bettini, Johan
Museeuw, Stefano Garzelli and Vincenzo Nibali.
The locking mechanism found in the original PowerCranks is a collar that slides in and out of two positions: locked and unlocked. In the locked position, the PowerCranks act like a regular set of crank arms working together to propel you forward. In the unlocked position, the crank arms move independently.
The new model offers two positions with the first replacing the original locked mode but now featuring 2-3º of movement while the second position, or unlocked mode, has 10º of movement.
The 2-3º movement in the first position is very slight so the PowerCranks feel like regular cranks and it’s also very difficult to determine any pedaling technique flaws. In the 10º position, it becomes quite obvious when there is a technical flaw by both how it feels and the sound it makes.
Along with this improvement, PowerCranks have become more reliable, quieter and lighter. Less steel is used in the design, and the cranks can be taken out on a long ride or used during a training race.
Crank arm length, as in previous models, remains adjustable, so one can really feel how crank length impacts pedaling technique and power. According to PowerCranks, most power is lost because cranks are too long and riders do not pedal over the top efficiently. The new cranks make it easy to feel any inefficiencies and are an ideal crank-length fitting tool as well. Available late summer 2017. - MS