Tech Talk | Speedway Race Parts Pro1 Sizing
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For Warranty Returns Please Click Here and for Refunds Policy Click Here 


 Tech Page

Please Download the Following PDF as Required. For all custom drawings please return email to [email protected]

FREE POST Conditions – You must buy more than 1 item Online. Each Item must fit into a 5 KG Australia Post Bag. Listing must say Free Post. No Refunds if incorrect postage is selected at Checkout. Subject to change with no notice.


Pro1 Suit Sizes

Pro1 Sfi Race Suit Size Guide Chart


Zamp Race Suits

Zamp Australia Sfi Race Suit Sizes 

Zamp Youth Sfi Suit Size


Sfi Race Boot Sizes

Sfi Pro1 Race boot Size Chart


Pro1 Sfi Race Glove Sizes

Pro1 Sfi Race glove size chart


Pro1 Snell Helmet Size Chart

Pro1 Snell Helmets Size Chart


Custom Race Suits

Custom Suit Size Chart



Kenco Strut Settings and How to Adjust

Kenco Strut Settings


Kenco Strut Length – Standard Series and Short Series

Strut Lengths



Custom Fuel Cell Form – Aluminium

Custom Fuel Cell



Conditions of Sale Pro1 Race Parts

Conditions of Sale



Race Products 1500 Series Full Floating Diff Assembly

1500 Alloy_Floater_Kit_Info _Sheet3 (1)


Race Products 1500 Series Full Floating Diff Assembly

750SER_Camber_Info _Sheet_3



UNIFILTER – Check out the Getting in the Dirt Filter Flyer by Uni Filter. We have a huge range in Stock or Call us for your Custom Needs

Race Rally Air Filter Speedway Sprintcar



Simpson Hybrid Information and Installation Instructions

Click Here



STAND 21 Hans Device Size Chart

Stand 21 Hans Device Sizing chart Pro1



QUARTER MASTER CLUTCHES | What Spline do I need ??

Most Common Splines Sizes for Holden and Ford. Holden Getrag is 23 Spline, Holden T5 is 10 Spline 1 1/8″, Ford T5 is 10 Spline 1 1/16″

Buy Now Here



Official Logos for Download

Pro1 – PNG   PDF 

Kenco Racing – PNG  PDF

Kenco Shock Services – PNG  PDF  PNG  PDF


Rod End Specs – Use as a Guide Only – Click Here


Borgwarner Diff Gears and Spool Series Information

What Series is my Borgwarner Differential ??

75 Series 25 Spline – VB to Early VK Commodore

75 | 76 | 78 Series 28 Spline – Late VK Commodore, VL | VN | VP | VR | VS Commodore. SOME VT | VX | VY | VZ Commodores. EB | ED | EL | EF | AU Falcon. BA – BF Flacon | XR6 Non Turbo. R31 6 cyl Skyline

80 Series 28 Spline – FG Ford Falcon | XR6 Non Turbo, SOME VT | VX | VY | VZ Holden Commodores.

NOTES – Series 75 | 76 | 78 | 80 Available in both 28 Spline and 31 Spline Mini and Full | Maxi 80 Series will fit into 78 Series using 1 Pin Only. This is a guide only and we take no responsibility for wrong information. Check your diff to confirm your series.




Pro1 Fuel Regulator Diagram



How to measure for a Kirkey Seat ?? Do you need Kirkey seat sizing ??


Below is the Kirkey 80 Series Shop Drawings | Measure up and than click here to buy.


Kir80 Series in 14 Inch – Click Here

Kir80 Series in 15 Inch – Click Here

Kir80 Series in 16 Inch – Click Here

Kir80 Series in 17 Inch – Click Here

Kir80 Series in 18.5 Inch – Click Here


Quickcar Digital Gauge Installation Set up Calibration Guide

Click Here

Thanks for Choosing Pro1 Race Parts, Kenco Racing Products, Race1 Fuels and DirtFlex Fibreglass