Rally. World RX

Applications: Rally, R5

Designed to meet the FIA R4T and R5 cost cap, Alcon’s new R5 caliper is the most competitive in weight and stiffness on the market.

Its optimised design allowing for integrated cooling features and stainless steel ventilated piston end caps, enables better heat management in any situation. Designed primarily for use in R4T, R5 and Rallycross competition, the R5 caliper is versatile enough to be used in any area of motorsport where a disc range of 300mm – 355mm is required. Benefiting from internally drilled fluid passageways and no external cross over pipes*, Alcon’s new caliper offers the best level of protection in even the harshest of environments.

Key features and benefits

Billet monobloc 4 piston caliper

Ø38.1, Ø41.3mm aluminium pistons with stainless steel vented insert

Floating tab drive disc assembly

Optimised lightweight design

Internal fluid transfer


Disc diameter range Ø300×29 to Ø355x33mm

Dry weight 1.82Kg excluding pads

Alcon pad reference: 4423 pad shape, 16mm thick, area 64.5cm2

  • World RX.


    4-piston radial mount monobloc caliper

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