Clarks React 4 Piston Hydraulic Brake Set
- Complete front and rear braking system
- Self-adjusting 16mm pistons
- Adjustable lever reach
The Clarks React 4 Piston Hydraulic Brake Set is a complete front and rear braking system for mountain and hybrid bikes. Its four-piston hydraulic calipers deliver strong braking force with smooth control. The set comes pre-bled and includes levers, rotors, hoses and fittings, so it is ready for installation.
Key Features and Benefits:
- Four-piston hydraulic calipers: Four pistons apply even pressure across each brake pad. This creates high braking force and gives you firm control on steep or technical trails.
- Self-adjusting 16mm pistons: The caliper pistons move closer to the rotor as the pads wear. This keeps the lever feel stable and reduces the need for manual adjustment.
- Smooth brake modulation: The hydraulic system lets you control braking force through the lever. You can make small speed changes or apply full power without a sudden response.
- Pre-bled brake system: Both brakes arrive filled with mineral oil and ready for fitting. This removes the need for an initial bleed and helps reduce installation time.
- Adjustable lever reach: The lever position can be changed to suit different hand sizes. This makes the controls easier to reach and supports a secure grip while braking.
- Split-C lever brackets: The hinged clamp design fits around the handlebar without removing the grips or other controls. This makes fitting and position changes faster and simpler.
- Wide bike and mount compatibility: The brakes suit mountain and hybrid bikes and support international standard and post mount fittings. This allows installation on a wide range of frames and forks.
- Complete fitting kit: The set includes two stainless steel rotors, bolts, hoses, fittings and spare olives. The olives allow the hoses to be shortened for a neat fit on your bike.
The React 4 system gives you the braking force needed to manage speed with less lever effort. Its four-piston calipers, controlled lever response and self-adjusting pistons help maintain consistent braking as conditions and pad wear change. Mineral oil provides dependable hydraulic performance and has less environmental impact than many alternative brake fluids.
Choose the Clarks React 4 Piston Hydraulic Brake Set for a complete braking upgrade with strong power, simple fitting and precise control.
Box Contents:
- X2 Calipers
- X2 Levers
- X2 Rotors and bolts
- X2 Hoses and all fittings
| Brand | Clarks |
| MPN | CLB0704 |
Our Payment Options
Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.
Finance Options
In order to get the kit you want, when you need it, we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance, Klarna and Clearpay. Credit is provided subject to affordability, age and status. Minimum spend applies. Use responsibly, T&Cs & late fees apply.
Our Finance Providers
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D.T.(Automotives)Limited trading as Tweeks Cycles offer interest free and interest-bearing credit on purchases £300 and over which is provided by V12 Retail Finance.
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We also offer Klarna, pay now, pay in 30 days or pay in 3 equal instalments.
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We also offer Clearpay pay in 4 instalments.
UK Mainland Delivery Prices
| Delivery Type | Cost | Estimated Delivery Time |
| Standard Delivery for orders under £49.99 | from £1.33 | 2-3 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Standard Delivery for orders over £49.99 | Free | |
| Bike Delivery | Free | 3-5 working days from day of despatch *(Excludes weekends and Bank Holidays) |
| Express Delivery | from £1.68 | 1-2 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Special Delivery | from £12.54 | For any next working day delivery order before 4.30pm Monday to Thursday. For any weekend delivery order before 4.30pm Friday |
* Bike Delivery Info
A bike has to go though a Pre Delivery Inspection (PDI Check) prior to despatch, ensuring the bike is thoroughly checked and set up prior to you receiving. This also means an express delivery service is unavailable. We strive to despatch bikes within 3-5 working days. Please note this may change over school holidays and the festive season (November/December). For more information on the process please visit our pre-build page.
For international shipping please visit our delivery page.
For information about returning an item please visit our returns page.