[바이크매거진]Shimano launches new 2×12-speed GRX Di2 gravel drive practice

Shimano launched the 12-speed GRX RX825 Di2 drivetrain, an electrical drive system for the gravel style.
It combines an unmatched electrical drive with optimized gear choices for various situations, and contains an improved double management lever for comfy management, a Shimano SHADOW RD+ rear derailleur for extra secure chain drive efficiency, and a entrance derailleur for exact motion.

The 12-speed Di2 RX825 was launched within the GRX sequence, a gravel group.

The management lever and derailleur are related wirelessly.

2×12-speed powered GRX gear choice

Once you use the brand new GRX RX825 Di2 twin management levers, selectable satellite tv for pc switches, entrance derailleur, and rear derailleur together with your present RX820 crankset, cassette, and brakes, you possibly can take pleasure in Shimano’s signature Di2 shifting efficiency and reliability with non-compulsory 2×12 gravel gears there may be.
As with the RX820 mechanical elements, you possibly can customise your gear with a 48/31T chain or use an RX610 crank and 46/30T chain. You may also select between 11-36T or 11-34T cassettes.
This gear mixture is paired with Shimano’s newest carbon gravel wheelset, the WH-RX880.
The RX880 wheel, with an inside width of 25mm and an improved direct contact free heart, helps you journey nicely irrespective of how lengthy and tough the highway is.

Management lever with ergonomic design extra appropriate for gravel environments

Helps a clean 2x chainring system, permitting a wider vary of substances ratios to be chosen.

Shimano Di2 digital shifter for gravel

Just like the 12-speed DURA-ACE, ULTEGRA and Shimano 105 Di2, the brand new GRX Di2 system includes a multiport battery that gives reasonable energy to the entrance and rear derailleurs to make sure lengthy, dependable operation. Smaller diameter cables run instantly from the battery to every transmission, eliminating the necessity for joints and simplifying the meeting course of.
As well as, the battery constructed within the heart is simple to cost and stays secure even on tough roads.

The entrance and rear derailleurs are powered by an built-in battery system.

Shimano 12-speed GRX Di2 is a clutch just for wi-fi gravel. A comb form on the floor of the hood resembles a ribbon form, offering secure steering in tough driving together with a brake lever with an anti-slip coating.
The hidden Di2 button is situated contained in the hood, permitting you to take care of a safer place like the present GRX RX815 Di2 twin management lever. It may be used as a substitute for shifting gears or checking the bike pc display.

Cover the button for straightforward entry

You should utilize extra wi-fi switches to shift gears and apply capabilities to the specified location.

The twin management lever adopts a cross part of physique form optimized for gravel and is hooked up to the flared handlebar. The extra rounded form creates a slower motion from the deal with to the hood and creates a bigger floor space, which helps scale back strain on the palms.

Twin hydraulic disc brake management levers characteristic three Di2 buttons per lever and customization by way of the E-TUBE PROJECT Bike owner app. It’s designed with an anti-slip brake lever specialised for gravel and an ergonomic bracket to enhance grip, and is optimized for the brand new flare drop bar.

And it permits for accent shift buttons, one other main good thing about digital shift.
Connect certainly one of Shimano’s satellite tv for pc shift switches to the highest, drop or aerobar and the rider will not have to maneuver their palms. Just like the hidden buttons on the GRX Di2 Twin Management Lever, the satellite tv for pc switches will be assigned to a number of capabilities, together with motion, management of corresponding lights and bike computer systems, and lap buttons throughout train.

Shimano’s SHADOW RD+ know-how is utilized to the RX825 rear derailleur.
With an on/off swap, Shadow RD+ can simply steer the rear wheels within the OFF place. When ON, extra compression is utilized to the drive, enabling a quieter journey and extra exact shifting.
Like Shimano’s 12-speed Di2 highway system, the rear derailleur is the communication hub of the drive practice, speaking wirelessly with the shift levers, bike pc, and PROJECT E-TUBE Bike owner by way of smartphone.
As well as, the system’s charging port and multi-function button enable the rider to simply examine the remaining battery degree, pair Bluetooth, and enter the mode change for each broadcasts.
The FD-RX825 entrance derailleur secures a chainline that’s +2.5mm wider than earlier than. Subsequently, wider tire clearance was developed.

Transmission with Shadow RD + know-how

E-Tube Mission Customization and Entrance Motion Subsequent

Utilizing the E-Tube Mission Bike owner App, riders can choose completely different gear shift intervals for a number of shifts. Movement button assignments will be custom-made, numerous computerized movement modes akin to synchronous and semi-synchronous movement will be programmed, and motions will also be tuned.

The discharge of the RX825 additionally coincides with the debut of Shimano’s new FRONT SHIFT NEXT characteristic.
Utilizing the E-Tube Mission Bike owner app, you possibly can program a 12-speed Di2 button to shift to the chain you are not at present utilizing, then swap backwards and forwards utilizing the identical button.

Utilizing the E-Tube Mission app, you possibly can set duties and management numerous assets.

This new firmware is suitable with the GRX RX825 in addition to Shimano’s 12-speed highway Di2 groupset. Because of this, it allows easier and extra intuitive motion for riders with much less driving expertise and sooner selections for veteran racing riders. And never solely does it enormously simplify the gear shifting course of, but it surely additionally permits you to swap between a number of screens on a paired bike pc.
You may also produce other switches to deal with duties akin to turning suitable lights on and off or urgent the ‘lap’ button in your cycle pc, saving you your palms use whereas driving.

Associated web site
Nanux Networks: https://bike.shimano.com/ko-KR/residence.html