It’s lighter, it’s stronger, it’s higher… It’s the brand new Shimano EP8 mid-drive motor system for electrical mountain bikes.
The bicycle part large has simply launched its newest electrical bicycle drive unit with quite a lot of efficiency upgrades.
Shimano releases new EP8 e-bike motor
The brand new Shimano EP8 mid-drive motor unit packs much more torque than Shimano’s earlier drive items, as much as 85 Nm.
Whereas growing the drive’s torque, Shimano was additionally in a position to concurrently cut back the burden of the unit to only 2.6 kg (5.7 lb).
As the corporate defined:
“EP8 delivers as much as 85Nm of torque, a 21 p.c improve (in Path and Increase modes) over the STEPS E8000 motor platform (Shimano’s earlier top-end eMTB drive system).
The brand new magnesium drive unit casing design delivers a 300-gram (0.66-pound) weight reduction (5.7-pound whole weight) in a ten p.c smaller type issue.
With 85 Nm of torque, Shimano is competing head-to-head with Bosch’s most powerful mid-drive motor. However for any riders who don’t need such excessive torque on faucet, Shimano’s E-Tube Challenge app permits riders to regulate the utmost torque wherever within the vary from 20-85 Nm.
The Shimano EP8 drive unit additionally encompasses a new gear design that reduces gear drag by 36%. That ought to assist it really feel extra just like pedaling a standard bicycle. The lowered motor noise may also assist riders overlook that they’re pedaling an electrical bike as a substitute of an acoustic bike.
As the corporate continued:
Because of a brand new seal construction and kit design, drag is lowered by 36 p.c, getting a lot nearer to the conventional pedaling feeling of a standard bike. Riders will really feel a smoother cutoff as they attain the utmost help velocity after which profit from lighter pedaling with out help.
The brand new Shimano EP8 motor unit is designed to combine with Shimano’s larger capacity batteries that were announced earlier this Spring.
A serious a part of the brand new motor’s programming consists of an emphasis on smoother energy supply.
A brand new algorithm was developed to extra precisely calculate and apply the right quantity of energy primarily based on the rider’s pedaling, which additionally ends in a slight vary improve as properly on account of much less vitality being wasted when it isn’t wanted.
The brand new algorithm additionally helps enhance a singular quirk of earlier Shimano mid-drive motors that noticed e-bikes fitted with the motors typically lurch ahead when used within the highest pedal help mode.
As Shimano elaborated:
“The brand new algorithm always calculates the best help ratio for the scenario. This straightforward idea improves the experience high quality in all conditions, eliminating the lurch ahead and wasted vitality because the bike accelerates whereas additionally persevering with to offer extra help when the path will get harder and the rider works more durable.”
New electrical bicycles that includes the Shimano EP8 drive system are anticipated to debut later this 12 months.
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