Instead, Shimano has moved to a semi-wireless format - hereby dubbed “wiredless” - where each lever is fully independent, but the derailleurs are connected to a new central battery.Īccording to Shimano, this wiredless setup offers the best of both worlds. Probably the biggest story about the new Dura-Ace Di2 R9200 and Ultegra Di2 R8100 is that all of the components are no longer physically wired together. Without further ado, let’s get into the shared details.
#Asreml r ace model install#
What features and benefits, you ask? According to Shimano, the shifting is faster across the board, the brakes run quieter and offer better modulation and feel, it’s easier and more intuitive to install and customize, and there’s even a new lever shape that claims to address some minor issues with the outgoing model without alienating riders who love the current stuff.Īnd yes, there are some surprises, too, both good and bad. But what few people expected is that - for the first time ever - Shimano has simultaneously launched the new Ultegra Di2 groupset, with all the same features and benefits. We’ve been expecting it for months, and there’s been no shortage of spy photos circulating online. It’s hardly a shock that Shimano has today officially unveiled its latest Dura-Ace Di2 flagship electronic road groupset with a 12-speed cassette and semi-wireless format.
Lows:Updated lever shape, disc-brake pad clearance isn’t much better than before, semi-wireless configuration and 12-speed might not be sufficiently strong arguments for upgrading.Highs:Even-faster shifts, more controllable braking, updated lever shape, wider range and/or tighter gearing relative to 11-speed, choice of wired or semi-wireless setup, very long battery life.