Race kit for 15” and 16” wheel Conversion

Conversion Contains:

2 x Race 4 pots or 6 pots Radial calipers  Hard Anodised black

2 x Conversion brackets

2 x Curver 48 vane Rotor Grind, 295mm, 300mm, 310mm, 320mm

2 x Hard Anodised black Bells


Race Conversion Price excl vat from £820



Wheel Size: 15” and 16”


Before ordering please check your wheel clearances.  HiSpec calipers are wider than the standard sliding caliper, therefore we cannot guarantee fitment for every wheel on the market.  


For a Wheel clearance diagrams  please call or email us for a clearance diagram.

Our kits are made to order, Please allow up to 28 days from your purchase date to shipping of your HiSpec conversion.

2  Caliper aluminium billet hard anodised black

2  Curver 48 vane Rotor

2  Mounting aluminium Brackets

2  Rotor mounting Bell aluminium hard anodised black

    All mounting nuts and bolts pack

All price are + VAT

Brake kit = 2 Curve vane rotors, 2 aluminium mounting bells,

 2 Aluminium mounting brackets, all nuts bolts

Caliper price = R + RS114-4/310  £160 x 2 = £320

Kit for 15” wheel 295mm. Kit price = £500.58 + caliper

(Caliper £320  + Kit 500.58)  = £820.58 Total

Caliper price = R + RS114-4/310  £160 x 2 = £320

Kit for 16” wheel 320mm. Kit price = £553.68 + caliper

(Caliper £320  + Kit 553.68)  = £873.68 Total

Caliper price = RX 114-4/310       £185 x 2 = £370

Kit for 15” wheel 295mm. Kit price = £500.58 + caliper

(Caliper £320  + Kit 500.58)  = £873.68 Total

Caliper price = RX 114-4/310       £185 x 2 = £370

Kit for 16” wheel 320mm. Kit price = £553.68 + caliper

(Caliper £370 + Kit 553.68)  = £923.68 Total

Caliper price = R + RS126-6/310  £199 x 2 = £398

Kit for 15” wheel 295mm. Kit price = £500.58 + caliper

(Caliper £398 + Kit 500.58)  = £898.58 Total

Caliper price = R + RS126-6/310  £199 x 2 = £398

Kit for 16” wheel 320mm. Kit price = £553.68 + caliper

(Caliper £398 + Kit 553.68)  = £951.68 Total

Calipec price = RX 126-6/310       £224 x 2 = £448

Kit for 15” wheel 295mm. Kit price = £500.58 + caliper

(Caliper £448 + Kit 500.58)  = £948.58 Total

Calipec price = RX 126-6/310       £224 x 2 = £448

Kit for 16” wheel 320mm. Kit price = £553.68 + caliper

(Caliper £448 + Kit 553.68)  = £1001.68 Total

 Caliper price = RX15-6                £299 x 2 = £598

Kit for 15” wheel 295mm. Kit price = £500.68 + caliper

(Caliper £598 + Kit 500.68)  = £1098.68 Total

Caliper price = RX16-6                £299 x 2 = £598

Kit for 16” wheel 325mm. Kit price = £563.65 + caliper

(Caliper £598 + Kit 563.65)  = £1161.65 Total

Caliper price = RS132-4               £228 x 2 = £456

Kit for 15” wheel 285mm. Kit price = £500.58 + caliper

(Caliper £456 + Kit 500.58)  = £956.58 Total

Caliper price = RX132-4               £245 x 2 = £490

Kit for 15” wheel 285mm. Kit price = £500.58 + caliper

(Caliper £490 + Kit 500.58)  = £990.58 Total

Caliper price = RS132-6               £285 x 2 = £570

Kit for 16” wheel 310mm. Kit price = £553.65 + caliper

(Caliper £570 + Kit 553.65)  = £1123.65 Total

Caliper price = RX132-6               £315 x 2 = £630

Kit for 16” wheel 310mm. Kit price = £553.65 + caliper

(Caliper £630 + Kit 553.65)  = £1183.65 Total

R-RS-RX114-4 best for car 450kg to 800kg

Are Hispec Caliper the best yes


Hispec  entire range of calipers are made from highest quality billet aluminium

Hispec  caliper are made to extreme specifications and tolerances

Hispec  race caliper are designed, tested and proven to be used on race cars

Hispec  race caliper’s are only available in hard anodised black for function

R – Caliper are slim line caliper’s and only do be used as a last option that will fit, has a piston depth of 21mm

RS- Caliper are mostly recommend for  race use as they are rigid and use pistons with a depth of 26mm

RX – Caliper’s are designed for extreme use hence they are chunkier and more rigid than RS caliper’s with a piston Depth of 28mm



Are Hispec rotor the best yes


Hispec curved vane rotor have 48 vanes to aid cooling and are made of very high grade cast iron

As with all Hispec products they are made to extremely high specifications using the highest quality materials available

Hispec Rotors are manufactured in the UK at our premises, the castings are also sourced within the UK that supply high quality race grade pure cast iron castings


15” Wheel Brake Conversion.    Brake kits  from 295mm, 300mm 305mm Rotors diameter.    26mm, 28mm, 32mm Rotor width



16” Wheel Brake Conversion.    Brake kits  from 300mm, 320mm 325mm Rotors diameter.    26mm, 28mm, 32mm Rotor width

All kits with floating rotor add £26.72 for bobbin kit


R-RS-RX 126-6 Best for cars 750kg to 1100kg

RX15 - RX16 Best for cars 800kg to 1400kg

RS-RX132-4 Best for cars 1000kg to 1400kg