Giant contend ar1

Aluminium, steel and titanium have their place in bike building, but nothing compares to carbon fibre in terms of design freedom. Makers can blend light weight with comfort, aerodynamic profiles with

Giant’s latest Reign Advanced E+ is cut from the same cloth as many other gravity-focused e-bikes on the market, with slack, long and low geometry, plenty of suspension travel and a robust, familiar f

Haibike’s ALLMTN 6 could be all the e-bike you ever need. But that’s not to say it’s perfect. Haibike have hit this tricky price point by prioritising the electronic components, speccing the latest Bo

Weight 9.21kg (size 58R) Frame Reynolds 853 Road DZB steel Fork Anraed 4.0 carbon fibre Groupset Shimano 105 Di2 R7100 (50/34t, 11-34t) Wheels Hunt 50 Carbon Disc Tyres Continental GP5000 AS TR, 700c

Weight 6.73kg (56cm, claimed) Frame FACT 10r carbon fibre Fork FACT 10r carbon fibre Groupset Shimano Ultegra Di2 R8100 with 4iiii Precision 3+ single-sided power meter (52/36t, 11-30t) Wheels Roval A

Quick rule of thumb: for the average rider (say 80kg) riding at an average speed up an average slope (say 12kmh for 10km up a 6% gradient), it costs around 2W in extra energy for every extra kilo of w