From early prototypes to final realization, it is almost 10 years, including experiments and tests, not without difficulties to overcome the mistrust of the fans, to develop the system and make it reliable, in order to reach the market with a valid and reliable but above all effective. Today it is flanked by his son Simone in this adventure.
The crank GB System
The crank GB System is simple in its implementation and is based on a classic bottom bracket to the pivot, which is available with both Italian and English thread. Innovation is into the cranks of the bottom bracket, union passing through a sort of eccentric, which allows a longitudinal movement of the crank varies depending on the length of the same from 5 to about 8 millimeters. The cranks are available in lengths of 170, 172.5 and 175 mm. The crowns are produced by Miche, the model Supertype in classical dentures from 39/53, but Obviously, using the catalogue Miche, you can change the choice of relationships. It 'a little game of lateral cranks needed to enable the movement of the same in longitudinal. The whole creation is made in Italy.
The test
The assembly of cranks is simple and compatible with any box bottom bracket and type of chassis. The operation of the crank means that the same is not perfectly anchored to the bottom bracket, with a game that was deliberately created by about 5-8 millimeters, which requires a constant push and pull on the pedals. Indeed, with only one pedal thrust in the passage to the dead will move the crank back strikes against the eccentric. This effect is felt by the cyclist with the sound of the beat of the same eccentric crank. To avoid this noise should therefore proceed with a more round pedal, forcing to have traction on the pedals, so that the crank always remain in contact with the eccentric. Develops in this way, a continuous training in activating the posterior thigh muscles, the front leg, for the thigh muscles, improving the efficiency of cycling and, consequently, performance. We need a certain time of training and habituation to the system, especially as long as you have not, originally, a pedal roundabout. The advantage of this system, compared to other similar, is that in these road cranks allow a workout fully comparable to normal cranks. There are no special difference and then you can perform safely all types of journey and every particular training session. Obviously not the cranks to use in the race, but they, in practice, to be able to train to get a ride round in a very natural and spontaneous. This is reflected also in improved performance on the road, even against a period of adaptation, and especially of will to achieve the objective. It is not easy, in fact, immediately get a perfect contact between the crank and eccentric and the effort required can expel the less motivated. The lateral movement of the cranks, which ensures the game longitudinal, is imperceptible in the saddle.
Conclusions
The cranks GP System has been a pleasant surprise, have a good craft achievement, even if they seem too far too Spartan and simple, but still an object of training in which aesthetics must give way to functionality and the objective to be achieved , so also their weight (not the content and over 700 grams, without the bottom bracket) is not of concern. To get a ride round an efficient and effective to use force because the muscles antagonistic to the pedal push, but need a lot of will power and concentration to achieve the objective. But always allow you to train and for each program with the utmost security, as a regular cranks, without, therefore, such limitations of other products that promise the same effect. Cranks are by training and therefore should not be used in the race, not for safety reasons, but because heavier and with a less effective machine of a crank on the highest level. But this is not their task, the acquisition of GB System is designed to improve the athletic pedalling and this is a really effective tool. But to get the most of their use should be included in a detailed training plan, including specific training sessions, and continuous calls during the season, including through training with normal cranks race. Another aspect to consider is the period of adaptation, which could slow down the preparation in the early stages of adoption. Therefore, to avoid inconvenience, it's good that happens so gradually, without forcing a lot in the early exits, and as long as that of training intensity. Then evaluate the ability of the subject to adapt to this product, its capacity for coordination and muscle elasticity in order to better plan a successful workout. From a strictly theoretical, to succeed on an ongoing and systematic way, to involve all districts of the leg muscle of the various stages of cycling is effective to improve the power expressed and the efficiency of the pedal itself. Can be a powerful workout for the rider or agonist for the demanding lover who wants to improve their athletic gesture.
Are suitable for
Are a valuable support for those who want to improve your ride, especially suitable for athletes and for those who follow a training plan. For cyclists, the adoption must be evaluated according to their desire to improve their ride.
Price
The price to the public is of 430,00 Euro, a competitive price with other products in the industry.
Positive aspects
Effectiveness
Security
Reliability
Price
Negative aspects
The look has been neglected in favour of
For further informations:
GB System
61032, Fano (Pu), Italy
Tel: 339 8707 962 (Simone)
Tel: 339 6486 731 (Giovanni)
Fax: 0721 871941
Website: www.pedivellagbsystem.com
E-mail:
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