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• React 4 Piston Hydraulic Brake Set

Redefining Braking for the MTB Rider. At the heart of this innovative 4-piston brake system lies a formidable 4-piston hydraulic caliper, meticulously engineered to provide unmatched stopping power and precision control.

Whether navigating steep descents or tackling challenging trails, React 4 ensures powerful, reliable performance in even the most demanding conditions.

Technical specifications

• Powerful 4 Piston hydraulic brake system
• Smooth, powerful modulated braking
• Self adjusting 16mm calliper pistons
• Split-C lever bracket design
• Lever reach adjustment to suit all hand sizes
• Suitable for MTB and Hybrid bikes
• Uses environmentally friendly mineral oil
• International standard and post mount compatible
• Stainless steel rotors
• Spare olives to allow for hose reduction
• Mineral oil fluid to protect the environment
• Weight - 315g
• Complies with and exceeds EN15194 and ISO4210 regulations

Box Contents

• X2 Calipers
• X2 Levers
• X2 Rotors and bolts
• X2 Hoses and all fittings

Delivery & Returns

Dispatch Times

All orders placed on our website are dispatched within 1 working day

FREE UK Mainland Delivery

Optional Click & Collect from our Network of Retailers in the UK & Ireland

• This is a FREE service!
• At checkout you can choose your nearest local retailer to collect your order from
• When you choose to click and collect, you are supporting your local bike shop, as the retailer will receive the full profit on your order.
• Click and Collect orders should be available for collection from the retailer within 1-2 working days
• Please wait to hear from the retailer that your order is ready for collection before travelling
• Not sure where your nearest retailer is? find them here

Returns

Item(s) must be returned unused and in its original condition and packaging within 28-days from the date of purchase. Please read our full returns policy here.

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