{"id":66673,"date":"2024-07-05T17:01:50","date_gmt":"2024-07-05T15:01:50","guid":{"rendered":"http:\/\/9a341665-bde0-40c0-a1ac-c77771e3e64d"},"modified":"2024-07-05T17:25:45","modified_gmt":"2024-07-05T15:25:45","slug":"trp-and-bosch-launch-e-a-s-i-a12-electronic-drivetrain-with-automatic-shifting-for-electric-bikes","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/cyclingplus\/rss_feed\/trp-and-bosch-launch-e-a-s-i-a12-electronic-drivetrain-with-automatic-shifting-for-electric-bikes\/","title":{"rendered":"TRP and Bosch launch E.A.S.I. A12 electronic drivetrain with automatic shifting for electric bikes"},"content":{"rendered":"

TRP releases first electronic drivetrain with Bosch ebike implementation <\/p>

By <\/p>

Published: Friday, 05 July 2024 at 15:01 PM<\/p>

\n\n

TRP has released an electronic drivetrain in partnership with German motor brand Bosch.<\/p>

The new E.A.S.I. A12\u00a0 1×12 drivetrain has been designed for use with electric bikes<\/a> that use Bosch\u2019s Performance Line CX and SX motors.<\/p>

Manual and automatic modes are available, with the latter said to keep you spinning the cranks at a consistent cadence<\/a> whatever the load or speed.<\/p>

The drivetrain is centred around the A12 ebike-specific rear derailleur, which is then paired with varying shifting components depending on the type of riding you do.<\/p>

We’ve seen the new drivetrain at the Eurobike trade show<\/a> but TRP is yet to release full details, with pricing also to be confirmed.<\/p>

E.A.S.I. compatibility<\/h2>
TRP’s E.A.S.I. A12 ebike-specific derailleur showcased at Eurobike. – Nick Clark \/ Our Media<\/figcaption><\/figure>

TRP has partnered with Bosch for this drivetrain, with the rear derailleur being for electric bikes only.<\/p>

The system takes advantage of Bosch\u2019s updated eShift system<\/a>, also released this week, which sees the drive motor momentarily reduce support during gear changes for crisper shifts and reduced mechanical wear.<\/p>

It’s similar to SRAM’s AXS Transmission and Powertrain automatic shifting features<\/a>, with the bike keeping a consistent cadence.<\/p>

The system also implements Auto-Downshift, which automatically shifts down the cassette when you stop to give you the optimum gear to set off again.<\/p>

In addition, the TRP setup has a similar feature to SRAM\u2019s Coast Shift, called Roll Shift, which measures your rolling speed while coasting and automatically changes gears to match your speed.<\/p>

While in the automatic mode, you can override the system to change gears manually, though both Bosch and TRP claim this shouldn\u2019t be necessary.<\/p>

TRP says the system allows you to focus more on the trail or road ahead and less on what gear you should be in.<\/p>

E.A.S.I. A12\u00a0<\/h2>
\"TRP
TRP’s new E.A.S.I. A12 on a Bosch bike at Eurobike 2024. – Nick Clark \/ Our Media<\/figcaption><\/figure>

TRP says the new E.A.S.I. A12 derailleur has a cage release that allows for easy wheel removal by taking tension off the chain, similar to SRAM\u2019s Cage Lock.<\/p>

A clutch is also used in the derailleur, which is said to lead to a quiet ride by silencing chain slap.<\/p>

\"TRP
A cable runs to the derailleur from the main battery. – Nick Clark \/ Our Media<\/figcaption><\/figure>

Power is taken from the ebike’s main battery, reducing the amount of separate batteries that need to be kept charged.<\/p>

The drivetrain is compatible with TRP\u2019s range of 12-speed cassettes<\/a>, including the gold EVO 12 cassette.<\/p>

Get shifty<\/h2>

With the system being designed for all types of electric bikes<\/a>, TRP has released hood-style shifters called Hywire for electric gravel bikes<\/a> and a trigger called the CMD Shift Switch for electric mountain bikes<\/a>.<\/p>

Hywire<\/h3>
\"TRP
The gravel version of the TRP E.A.S.I. A12. – Nick Clark \/ Our Media<\/figcaption><\/figure>

The Hywire levers uses a similar button setup as Shimano for shifting gears, with the inside shifter button requesting a harder gear.<\/p>

An integrated master cylinder features inside the hood, with the system running on a newly formulated mineral oil.<\/p>

\"TRP
TRP, or Tekro Racing Products, is well known for its brakes. – Nick Clark \/ Our Media<\/figcaption><\/figure>

A 5mm hydraulic hose is used, said to provide a firm bite, and the TRP brake calipers have been designed for 1.8mm-thick rotors.<\/p>

\"TRP
There are function buttons on the end caps for pairing the hoods with the E.A.S.I. system. – Nick Clark \/ Our Media<\/figcaption><\/figure>

Function buttons for pairing the hoods with the E.A.S.I. system feature on the end caps. A small green LED (not on in photo) indicates that the system is connected. <\/p>

CMD Shift Switch<\/h3>
\"TRP
Textured paddles provide grip when shifting in wet conditions. – Nick Clark \/ Our Media<\/figcaption><\/figure>

For electric mountain bikes, TRP’s CMD Shift Switch uses CMD, or Command, technology that utilises a wireless connection to communicate with the drivetrain.<\/p>

It’s compatible with SRAM Matchmaker<\/a> and Shimano I-Spec<\/a> EV-mounted brakes, meaning less hardware is needed on the bar.<\/p>

All this should make for a squeaky-clean cockpit with the right setup.<\/p>

An audible click is made when pressing the triggers, with a small bit of feedback present that is said to allow for precise shifts over rough terrain.<\/p> <\/body><\/html>\n

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