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Okay, not a vast amount of hidden power, 200 watts is the claimed amount, but it should be enough to help you up those hills.

The Gruber Assist. An electric power assist motor for your bike that lives in the seat tube and only weighs 900g (the battery goes in a wedepack under your saddle and adds a further 1Kg. It produces a claimed 200 watts and the battery gives an hour and a half of continuous use. The idea is that you only turn it on when you have to go up hill.

To fit one you'll need a bike that's fitted with a Shimano Hollowtech II chainset and with a 31.6mm seat tube (or greater), so we're talking mountain bikes, trekking bikes, hybrids and some tourers. Oh, and you'll need a big pile of cash too as these things cost over $2,000 dollars.

And of course the whole thing is cheating!

 

Plucked from the obscurity of his London commute back in the mid-Nineties to live in Bath and edit bike mags our man made the jump to the interweb back in 2006 as launch editor of a large cycling website somewhat confusingly named after a piece of navigational equipment. He came up with the idea for road.cc mainly to avoid being told what to do… Oh dear, issues there then. Tony tries to ride his bike every day and if he doesn't he gets grumpy, he likes carbon, but owns steel, and wants titanium. When not on his bike or eating cake Tony spends his time looking for new ways to annoy the road.cc team. He's remarkably good at it.

3 comments

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DaSy [687 posts] 6 years ago
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I have a lactate threshold of just over 200W, and that took a lot of hard work, so to me 200W is a lot of power!

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purplecup [217 posts] 6 years ago
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if you read the stuff on their website they say that it's a 200w motor but the actual push is only 100w - at least that's how i understood it. even so, any push is a welcome push, especially if no-one can see the hand...  1

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Tony Farrelly [2856 posts] 6 years ago
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This vid gives more of an idea of what the 'hidden hand' is like in action… guess which rider has the Gruber Assist