Trek has removed its IsoSpeed frame-compliance technology and internal frame storage from the fifth-generation Domane endurance road bike to help reduce claimed frameset weight by up to 305g. It says the lightest spec weighs 950g less than before at 6.63kg, albeit with 28c tyres.
A new carbon layup and round seatpost, and wider 40mm tyre clearance mean the new bike is nearly as compliant as before, according to the American brand. Even when fitted with wider 35mm tyres, Trek says the new Domane is faster than its predecessor because lower rolling resistance cancels out higher drag.
