Shimano GRX RX400 Hydraulic 10 Speed STI Levers

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Product Description

Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.

Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.

With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.

Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.

What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.

No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.

Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!

Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.

Game-Changing Innovation.
Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.

Designed from the ground up for gravel adventure.
Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!

Key Features:

  • Gravel inspired lever and bracket ergonomics
  • Anti-slip brake lever
  • Greater mixed-terrain control
  • Same light shifting operation as top tier systems

Occasionally, without notice, manufacturers change product design and/or specifications.

Shifters Guide

What are shifters?

Shifters sit on your handlebars and are the levers you use to change gears.

Who needs shifters?

Any geared bike needs shifters. You might need new ones as part of a drivetrain upgrade, or because you’ve damaged yours in a crash.

What are the choices?

The shifters on a drop bar road bike are very different to the ones on a flat bar bike. There’s a pretty vast choice, but they generally match up with your bike’s groupset to help you make the right choice.

What should I buy with them?

If they don’t come with them, you’ll probably need some gear cables to get those new shifters set up.

Anything else?

As with most drivetrain parts, shifters aren’t really something you can upgrade in isolation. You’ll need to consider what other parts of your groupset you need to match up to get it all working together.

Finance

How do I apply for finance?

Spend £99 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

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V12 Representative Example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit 15.9% APR Representative (interest rate 8.17% fixed), you would pay £43.55 per month. Total amount of credit will be £1259.10 with a cost of credit of £308.70 after a deposit of £139.90. Total amount payable is £1707.70, subject to terms and status.
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Delivery & Guarantee

UK Delivery Information

International Deliveries – Temporarily Suspended 11/11/20

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Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause. 

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Returns & Warranty

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We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

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If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

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