GRUBER Assist is an ultra-light drive for mountain bikes. The drive is invisible Gruber cleverly designed built into the bicycle frame and scores especially through its light weight (900gr). Pressing the turbo button on the handlebar and the burning disappears into the thighs. The auxiliary drive made with 100 watts of additional power to the rear wheel - for at least 45 minutes at full load. When driving off the bike works as usual.
The LiION high manganese battery, which takes place in a traditional saddlebag space, enough for at least 45 minutes electric drive biking, depending on how much you tread. He has a low weight, a charge status indicator and an active balancing.
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