We have created a guide to help you decide what security product device or devices you will need to protect your caravan, motorhome, car or trailer. We recommend having two security devices fitted to fully protect your vehicle.

What is your hitch type?

Hitch Type	Part Number
ALKO including AK130, AK160, AKS1300, AKS2004 & AKS3004	SH5412
Winterhoff WS3000	SH5414
BPW ISC (ZKAS) stabiliser couplings	SH5414
50mm Avonride cast heads from 1400 – 3500Kg including; 575003, 575004, 575005 & 575008	SH5415
Bradley including; D5050AUTO, D201CA & MK4AUT	SH5417
Knott K7.5, K14, KK14, KQ14 & K20	SH5410
Steelpress ZSK-750, ZSK-1300, ZSK-1700, ZSK-2000, BC2300 & BC300.1	SH5410
Winterhoff WW8 A, B, C, D, E, G & WW150 VF	SH5410

What wheel clamp will fit my wheel?

It can be difficult to know which wheel clamp will fit the wheel of your caravan, motorhome or trailer. We have put together a few simple steps so you know which wheel clamp to look for.

1. Measure the wheel rim
2. Measure the tyre width

Once you know what size wheel you have and if it is a steel or alloy wheel, please use the chart below.  With our SH5432, SH5438 and SH5439 wheel clamps, we do not state a wheel rim size as their design means it is not necessary to measure this part of the wheel.

Wheel Rim	Tyre Width	Wheel Type	Part Number
12” - 14”	155 - 190mm	Steel	SH5431
12” - 13”	165mm	Both	SH5451
13” - 15”	165 - 205mm	Alloy	SH5436
13” - 15”	195mm	Both	SH5452
15” - 18”	225mm	Both	SH5456
Universal	Universal	Alloy	SH5432
Universal	Up to 265mm	Both	SH5438 & SH5439