FAQs

All Your Questions, Answered

 

What are Wobble Bolts?

The correct term is PCD Variation Bolts.  This type of bolt has a unique rotating washer collar that sits beneath the hex and above the threaded stud.  The 60° tapered collar is able to move 2.3mm in any given direction.  For example, if you have wheels that are BMW 5x120 PCD to fit on to a Vauxhall Vivaro 5x118 PCD, the wobble bolt is able to rotate its collar seat until the bolt is fastened in tight.  Once the bolt has made its final turn, the rotating collar is fixed and cannot move.

What are Flat Seat Variation Collar Bolts?

These are exactly as they sound, a bolt with a variation collar combined with a flat seat shank to seat perfectly into flat seat nut hole.  This particular type of bolt will allow you to perfectly fit Range Rover Sport (5x120 Flat Nut Seat) OEM wheels to Trafic Primastar and Vivaro.

What are Spigot Rings?

A spigot ring (o ring / hub ring / spacer ring) is made from from poly-carbonate or metal.  The purpose of a spigot ring is to centralise the wheel perfectly on to the hub of a vehicle, the correct size will ensure optimum fitment and prevent any wheel vibration or steering shake at high speeds.  The ring is designed to fit flush into the back of an alloy wheel so that it can be mounted securely on to the hub of the vehicle.  For example, the BMW e30 has a hub diameter of 57.1, BBS wheel has a diameter of 63.4mm, in this instance you would have to use the 57.1 - 63.4 spigot rings.  We can custom manufacture spigot rings in forged aluminium for any size as low as 0.5mm difference, eg 66.6 - 67.1.

What is Load Rating?

It is important your alloys are the correct load weight rate for the vehicle.  Commercial vans weigh more than most cars and more importantly have a higher carrying capacity (Max Load Weight).  It's this Maximum Load Weight per axle that your wheels need to be able to carry, for various reasons, but most importantly to be safe and road legal.

Wheel Load Rating requirements are determined by dividing the vehicle's heaviest gross axle weight rating by two.  In some cases you will only have the gross vehicle weight, here you would divide the rating by 4.

 

The correct term is PCD Variation Bolts.  This type of bolt has a unique rotating washer collar that sits beneath the hex and above the threaded stud.  The 60° tapered collar is able to move 2.3mm in any given direction.  For example, if you have wheels that are BMW 5x120 PCD to fit on to a Vauxhall Vivaro 5x118 PCD, the wobble bolt is able to rotate its collar seat until the bolt is fastened in tight.  Once the bolt has made its final turn, the rotating collar is fixed and cannot move.

How do I work out Load Rate for my Van?

Please check your owners manual for the van gross vehicle weight.  Below is an example for a Vauxhall / Opel Vivaro.

 

On a Vivaro 29 2.0 CDTi 115 SWB H/R the Gross Vehicle Weight is 2920kg.  To work out the minimum Load rating for the wheels, take the 2920kg and divide it by 4 = 730kg.  Therefore, in order to be safe and on the right side of the law, the wheels need to be load rated to a minimum weight of 730kg per corner.

 

Can I get BMW wheels on my Trafic / Primastar / Vivaro?

As long as the ​wheels are 5x120 PCD and have a rear centre bore of at least 72.6mm.  Any size from 15" to 19", width of 9.5" and an offset of 45-55.  If you are unsure, simply open the chat box or send us an email with an image of your wheels and your van make, model and year.  

We offer a 'check before you buy'.  ​Simply open the chat icon and send us an image of the wheels or a live link to the items for sale.  This could be a link to eBay, Amazon or Gumtree, maybe social media such as Facebook, Instagram or twitter, rest assured, you are dealing with professionals in wheel fastenings, we will help you buy the correct wheels and fitting kit for your vehicle.

 

Where can I get Radius Wobble Bolts?

Right here and right now, we can supply you with Radius PCD Variation Bolts.  Available in M12x.150 and M14x1.50.​  The Radius R12, R13 or R14 seat will allow you to perfectly mate and fasten alloy wheels with the ball / curve / oval seat.  Popular combination for this particular bolt is the 5x110 Vauxhall / Opel fitted with Mercedes 5x112 Radius Seat alloys.  Please note, you will require 65.1 to 66.6 spigot rings for the Vaux Merc setup.  we have these spigots in Poly-carbonate or Forged Aluminium off the shelf and ready for immediate delivery.

Can I use Spacers with Wobbly Bolts?

Yes of course you can.  We have a massive range of PCD bolts in many different lengths from 20mm to 60mm.  It is important for you to check the PCD of vehicle and spacer along with thickness.  For example, if your Fiat 500 is 4x98 and you are wanting to use 15mm 4x100 hubcentric spacers, rest assured, we have the extended variation bolts available to order.  The Fiat 500 2007 requires the M12x1.25 28mm bolt as standard, using 15mm spacers would confirm the need for 45mm thread length variation bolts.  If you are unsure or thinking of buying spacers and need longer wobble bolts, we are the team you need to speak with, a few questions and we shall get you sorted.  Keep the same wheels and stance them out, we will make it happen.

PCD Wobble Bolts UK

01274 524 666

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