The robots are coming for your mountain bicycle drivetrain. Right now Shimano announces the most current EP6 motor and an update to the EP8 that integrate with updated Di2 rear derailleurs to offer the skill to shift without having pedaling, and also automatic shifting (if you want it). Here’s what we know so significantly about how the process functions.
Shimano Free of charge Shift
Like some of the gearbox and geared hub drivetrains on the market place, the new Shimano built-in system enables riders to shift gears without having advancing the pedals. Unlike all those methods, the Shimano push method works with a classic 11- or 12-speed cassette. The magic is probable thanks to the electric powered drive motor operating in concert with a Di2 electronic derailleur. When the rider presses the change button the push motor advancements the chain (while not the crank arms) and adjusts the derailleur, letting for shifts when cornering, for example.
Shimano Car Shift (with Handbook Override)
With the motor and derailleur speaking to one another (plus integrated wheel speed and cadence sensors), the Shimano generate program can immediately change for the rider. This is said to work for equally climbing — wherever the procedure would presumably go into a lot easier gears to preserve pedal cadence up — and descending. On descents the process detects when the rider is coasting and shifts the chain onto a more compact cog. The video clip under illustrates how this is meant to get the job done.
Shimano can make it abundantly very clear in their promoting resources for this new characteristic that it can be manually overridden, and that riders really don’t have to run automatic shifting if they really don’t want to. This indicates vehicle shifting might acquire some getting utilised to, or most likely that it’s not completely foolproof still. At the very minimum it looks there might be some tradoffs to computerized shifting, specifically on the trail, nevertheless we will not know for confident until we have experienced a likelihood to consider it for ourselves.
E-bike only characteristics
Mainly because Cost-free and Car change rely on a motor at the crank conclude of the drivetrain, these features are constrained to e-bikes only. The new EP6 motor and an up-to-date model of the EP8 are needed, as is an eMTB-distinct Di2 derailleur. (The new Di2 LG is an 11-velocity derailleur, though the Di2 HG+ is a 12-pace derailleur.) The motor and derailleur will need to be bought alongside one another considering the fact that they do the job as a system and Shimano says for now, the combo will only be readily available to consumers who acquire new bikes with the elements mounted.
EP6 motor will come to MTB, promising a lower value level
Right up until now Shimano 6-stage motors have only been available for commuter bikes. The new EP6 is a devoted mountain bike motor that is presented at a “mid-level” cost point as opposed to the EP8 and EP7 models. Shimano suggests the EP6 provides 85Nm of torque just like the EP8.
The EP8 will get a minimal tech update to get the job done with the new derailleurs as nicely, and the up-to-date model is selected EP801. The EP801 shaves about 300g off the body weight of the EP6 while providing the identical torque and 250W of continual ability.