The most radical additions to the Kalkhoff electric bike line-up this year, the Pro Connect X24 and X27s dispense with the usual centre motor arrangement and pack enormous power into a rear hub motor instead.
The Xion system is a German-made 250 Watt direct drive hub is almost silent and gives a peak output of around 650 Watts for conquering hills and headwinds. The X24 comes with an 11Ah battery while the X27 offers greater range with a 15.5Ah power pack giving a maximum Eco range of 105 miles.
The Pro Connect Xions are unique among the Kalkhoffs in that they come with a regenerative braking system or Hill Descent Assist. The idea is that you set your preferred downhill speed and any spare momentum is converted back into electricity to top up your battery. It's similar to the BionX motor system last seen on 2011's Kalkhoff Image B27, but with a much larger battery capacity, better controls, far superior reliability and a lower overall weight.
Both models come with a clear, informative display panel and conveniently-located controls on the handlebars. It's a bit of an all-rounder, cut out for both commutes across town and long rides out in the countryside.
Along with the Agattu, the Pro Connect has great pedigree as an established and highly popular electric bicycle. This latest version brings the power, performance and sportiness that has distinguished it since its first appearance in 2008.