"What's that, Daddy?", the 5 year old asked as she pointed at the archaic benches hanging from rusted metal ropes. "That is… was a chairlift, honey," said the father.
The setting is any mountain resort in the world in the not-so-distant future as Enduro and Downhill riders take to the mountains on the BULLS E-Core EVO EN Di2 27.5. Powered by Shimano's new 250W E-8000 eMTB motor and two 375Wh (750Wh total) power packs (included), you've got the juice and the torque to conquer the climb, with 180mm front and rear suspension to smash the decent. And, for the transition: a KS Lev-Integra dropper seat post. Unfailing and immediate shifting kicks in thanks to Di2 XT electronic shifting that runs off the bike's main battery. 203mm Shimano XT hydraulic disc brakes provide almost dirt-bike level stopping power.
Electronic drivetrain systems deliver excellent shifting, easy set up, and solid battery life. Here are the highlights of today’s electronic shifting systems:
Electronic shifting systems use powerful servomotors to rapidly shift the chain. Because microprocessors and sensors constantly monitor every aspect of the system, they shift with precisely and without chain rub.
Many major systems have customizable shifting. Some have the ability to add remote shifters for common riding positions, and some even allow you to change the functions of the shifting buttons.
Electronic groupsets are responsive and consistent. There are no cables to stretch and wear out, so you get a flawless shift every time. The added bonus is you’ll never have to replace a derailleur cable ever again.
A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.
Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.
Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.
Wider than standard yet narrower than fat, plus-size rims and tires hit the sweet spot in grip, stability, and speed, giving you more confidence on technical terrain. Compared to a standard tire you’ll feel grip in places you wouldn’t expect thanks to a bigger contact patch and greater rollover clearance. More air volume allows lower tire pressures which softens bumps and increases float on sand or snow. Whether you’re a novice or an expert, the benefits of plus-size tires and rims will amplify your mountain biking fun.
|Motor||Shimano STePS E8000|
|Battery||TwinCore (2x 375wh batteries; total 750wh)|
|Max Assisted Speed||20mph|
|Range||Up to 62 miles with one battery|
|Fork||Rock Shox Lyrik RC Boost Debonair, 180mm|
|Rear Shock||Fox Float X2 Air|
|Tires||Schwalbe Magic Mary SnakeSkin, TLE, Apex, Folding, 65-584, 27.5x2.60|
|Crankset||Shimano Steps FC-E8050 Hollowtech|
|Rear Derailleur||Shimano Deore XT RD-M8050-GS Di2, Shadow Plus, 11-speed|
|Cassette/Rear Cogs||Shimano Deore XT CS-M8000, 11-speed, 11-46T|
|Shifters||Shimano Deore XT Di2 SW-M8050|
|Brakes||Shimano BR-M820, hydraulic disc brakes, 203/203mm|
|Seat Post||KS Lev-Integra dropper seatpost|
* Subject to change without notice.
|Black Matt/White Matt / 44cm||791-74444|
|Black Matt/White Matt / 49cm||791-74449|
|Black Matt/White Matt / 54cm||791-74454|