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Compound RST 1 (rally and sprint, the red Pagid pads), shape 1903, thickness 18 mm.
Fits: Ford Mustang (Saleen S281 Extreme), Mitsubishi Lancer Evo X R4 Tarmac Rally, Sin Cars R1, Sin Cars R1 RS, Sin Cars R1 GT4 and more versions (see list below)
Before ordering check the compatibility list at the bottom of the page or ask us for advice.
SPENDING OVER €400?
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At M4Tuning, we reward you: enjoy free shipping across the European Union when your order exceeds €400!
*Some areas excluded: Malta, Canary Islands, Réunion, Ireland, Greece, and Cyprus.
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Pagid Racing E1903RST1
Brake pads racing RST 1 - shape 1903
Pagid Racing is the racing brand of the German TMD Friction group based in Essen: for more than 30 years it has developed brake pads, discs and brake fluid for motorsport, with compounds engineered in Germany and tested on circuits all over the world.
The RST family is developed for rally, sprint and stock car racing: instant pedal response, progressive behaviour, a consistently firm pedal at all temperatures, fade resistance even with very hot discs and good cold friction. Because of the pad colour many people simply call them "Pagid red".
The RST 1 has a high friction level with very good initial bite and progressive torque, and is highly fade resistant. It suits cars with high downforce or grip, tarmac rallying and GT and touring cars on circuit; it is also widely used and successful in NASCAR.
Part number: E1903RST1
Shape: 1903
Compound: RST 1
Thickness: 18 mm
Dimensions (length x width): 152 x 63 mm
Backplate thickness: 5 mm
Axle: front and rear
Pagid note: Alcon, AP Racing, Coleman, StopTech
Related shapes (other thicknesses): 1538, 8018, 8192
Package contents: pad set for one axle
Same shape, other compounds: E1903R42, E1903RSC1, E1903RSL1, E1903R29, E1903RST3
Images: the first photo shows the RST family box and colour and is for reference only; the actual outline is the one in the shape 1903 drawing.
Race pads must be bedded in before track use: follow Pagid's bedding procedure or ask us how to do it. Product intended for track and competition use.
Compatibility:
Vehicles
Ford Mustang (Saleen S281 Extreme) (2007-2007) - front
Mitsubishi Lancer Evo X R4 Tarmac Rally (2007-2016) - rear
Sin Cars R1 (from 2015) - front and rear
Sin Cars R1 RS (from 2015) - front and rear
Sin Cars R1 GT4 (from 2015) - front and rear
Brake calipers
Alcon TA6, CAR89, CAR11 [4489] D51
AP Racing CP3894 D46 / D51 / D54
Baer Brakes 6S
Coleman Series IV
StopTech ST60
List taken from the official Pagid Racing 2026 catalogue. Road cars listed refer to the standard brake system unless stated; for race cars the fitted caliper is what counts. If in doubt, contact us before ordering.
Discover all Pagid brake pads, Racing and Street+.
Compound RST 1 (rally and sprint, the red Pagid pads), shape 1903, thickness 18 mm.
Fits: Ford Mustang (Saleen S281 Extreme), Mitsubishi Lancer Evo X R4 Tarmac Rally, Sin Cars R1, Sin Cars R1 RS, Sin Cars R1 GT4 and more versions (see list below)
Before ordering check the compatibility list at the bottom of the page or ask us for advice.
SPENDING OVER €400?
GET FREE SHIPPING ACROSS THE EU*!
At M4Tuning, we reward you: enjoy free shipping across the European Union when your order exceeds €400!
*Some areas excluded: Malta, Canary Islands, Réunion, Ireland, Greece, and Cyprus.PAY IN EASY INSTALLMENTS WITH KLARNA
Select Klarna at checkout and split your purchase into interest-free payments, with no additional costs.
*Subject to approval by Klarna at the time of checkout.| FOLLOW US ON INSTAGRAM | FOLLOW US ON FACEBOOK |
| | |
WE SHIP EVERY ORDER DIRECTLY FROM OUR WAREHOUSE IN ITALY, USING ONLY SELECTED EXPRESS COURIERS.
NOT ALL ITEMS ARE IMMEDIATELY AVAILABLE. ASK US FOR CURRENT STOCK STATUS.
