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Castrol SRF Racing Brake Fluid 1L, image 1

Castr

Castrol SRF Racing Brake Fluid 1L

Brake & Clutch FluidsSKU 6105442

Cheapest we found

$177.96

at XPERT Moto Gear

$177.96 lowest$199.95 highest

3 recent in-stock prices · spread $21.99 (12%)

Based only on in-stock prices checked in the last 30 days. 4 stores checked; dates for every store are shown below.

Recorded store prices

Prices we recorded when we last checked each store for this exact variant.

Product details

Castrol SRF Racing Brake Fluid 1 Litre

The compressibility of Castrol React SRF Racing is very similar to that of current DOT 3 and DOT 4 fluids. It can therefore be filled into any braking system used in motor sport with the exception of those for which a mineral oil is prescribed. It gives a “hard pedal” feel

FEATURES & BENEFITS

  • Widely used in racing, from Formula One, sports cars, V8 Supercar and Grand Prix and Superbike motorcycles.
  • The exceptionally high dry boiling point (higher than 300°C) makes Castrol React SRF Racing ideal for use under arduous braking conditions such as rallying or racing. It exceeds the boiling point requirements of DOT 5 brake fluids.
  • Very high vapour lock point and has the additional advantage of sustaining high vapour lock point characteristics during its service life.
  • It is miscible with all conventional fluids meeting the US Federal Standards FMVSS 116 DOT 3, DOT 4 and DOT 5.1, ISO 4925 and current SAE J1703. This means that changing the brake system to Castrol SRF is easy. Drain and flush out the conventional brake fluid with Castrol SRF then top up the system with Castrol React SRF Racing. Although Castrol React SRF Racing is miscible with conventional brake fluids, topping up Castrol React SRF Racing with conventional brake fluids will reduce the benefits of the product.
  • It is compatible with seal rubber and metal materials used in brake systems using conventional polyglycol brake fluids.
  • It is similar in viscosity to conventional brake fluids so is easy to bleed like conventional brake fluids.

SPECIFICATION/TECHNICAL DATA

  • FMVSS 116 DOT 3
  • FMVSS 116 DOT 4
  • ISO 4925 Class 4
  • SAE J1703
  • JASO JIS K2233 Class 4

Price history

Recorded changes for this exact variant.

Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.

  1. 1XPERT Moto Gear2 points · last checked 22 Aug 2026
  2. 2Everest Motorcycles1 point · last checked 22 Aug 2026
  3. 3Bikebiz1 point · last checked 20 Aug 2026
  4. 4MotoHeaven1 point · last checked 21 Aug 2026

Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.

How we collect and compare prices
Cheapest we found: $177.96 · XPERT Moto GearJump to comparison