As a British engineering company, Hi Spec Motorsport Ltd
manufactures conversions, calipers and rotors at our premises in Dartford, Kent.
With over 25 years of experience making brake components,
Hi Spec Motorsport Ltd can manufacture conversions for many vehicles.
Kit cars using Ford Sierra uprights/hubs
Please select from the options below for 1 piece disc brake conversions.
Caliper |
Disc Size |
Recommended minimum wheel size |
Starting from exc. vat |
Ultralite 4 Radial 280 |
260 x 20 Lightweight |
13”* |
£496 |
Ultralite 4 Radial 280 |
260 x 24 |
13”* |
£497 |
Billet 4 Radial 280 |
260 x 20 Lightweight |
13”* |
£595 |
Billet 4 Radial 280 |
260 x 24 |
15”* |
£595 |
Ultralight 4 Radial 280 |
283 x 22 Lightweight |
15”* |
£517 |
Ultralight 4 Radial 280 |
283 x 24 |
15”* |
£517 |
Billet 4 Radial 280 |
283 x 22 Lightweight |
15”* |
£616 |
Billet 4 Radial 280 |
283 x 24 |
15”* |
£616 |
Billet 4 Radial 280 |
300 x 22 Lightweight |
15”* |
£642 |
Billet 4 Radial 280 |
300 x 24 |
15”* |
£642 |
The base brake kit includes radial mount calipers, a pair of 2 piece discs, a pair of brackets and necessary bolt/nuts hardware to bolt the brackets to the hub lugs and the calipers to the brackets.
2 piece disc brake conversion options
Caliper |
Disc Size |
Recommended minimum wheel size |
Starting from ex vat |
Ultralite Caterham 260 Lug |
260 x 20 |
13”* |
£649 |
R114- |
270 x 20 |
13”* |
£881 |
RS114- |
270 x 20 |
13”* |
£881 |
The base brake conversion below includes a pair of radial mount calipers, a pair of discs, a pair of brackets and necessary bolt/nuts hardware to bolt the brackets to the hub lugs.
1 piece disc brake conversion options
Excluding 270x10 brake conversion which includes a pair of radial mount calipers, a pair of discs, a pair of brackets and necessary bolt/nuts hardware to bolt the brackets to the hub lugs and the calipers to the brackets.
Please select from the options below for 2 piece disc
front brake conversions:
All kit car brake conversions are based on standard hubs. If unsure or you have an after market hub/upright or custom fabricated upright, please contact us on 01322 286 850.
* Please request a wheel clearance diagram via email so you can ensure the brake conversion will fit within your wheel!
Please contact us if you do not see your vehicle listed or if you require a bespoke brake conversion.