What could be more exclusive than electronic gear shifting? Swiss-made electronic twist shifters, that's what. The unique take on how to shift Shimano Di2, SRAM eTap or Campagnolo EPS gears comes attached to a road bike – the Zirbel Velocity Racer – but will also be available as an aftermarket item, with pricing TBC at the time of writing.
The innovation uses something called Magnetic Click Technology to allow the construction of very small, robust and lightweight twist grip shifters that can, so it's claimed, be operated easily with gloves. What's more, a single shifter can operate both front and rear derailleur, and can be mounted on the right or left side of the handlebars as needed.
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Weight
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Go on then, how much does it weigh? Well the twist grip shifter weighs 16-19g, depending on whether it's Shimano Di2, SRAM eTap or Campagnolo EPS. The brake levers weigh 826, meaning that the total weight of a pair of twist grip shifters and brake levers is 98-101g. This compares with 130g for a pair of SRAM eTap shifters/brake levers.
The complete carbon-framed Zirbel Velocity Racer bike weighs an impressive 6.7kg without pedals, a hair under the official UCI weight limit. Finishing kit includes Profile Design handlebars, a Specialized Toupe saddle and Vision 55 wheels shod with Vittoria Corsa Elite tyres.
Price
Can it be fitted to any bike?
You can read more at BikeRadar.com
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