R.J. Walsh & Son is generally recognised as Australia's leading sulky manufacturer.

Begun in 1961 by Reginald James Walsh, the father of current Managing Director Jim Walsh, R.J. Walsh & Son has grown to become the largest manufacturer of harness racing vehicles in the southern hemisphere. The recipient of numerous awards, the company's Regal sulkies have enjoyed outstanding racing success in Australia and abroad.

We have exported more of our product since 1967 than all eighteen other Australian sulky makers during that period, and we are the only Australian sulky manufacturer to have exported more than 50% of production in a single year.

1961 to the Present - Read about the life & times of R.J. Walsh & Son.

Available here are articles and papers on the science of sulkies and track design. Many are extensively illustrated with photographs and diagrams.

Title	Description
The Physics of Light Harness Vehicles	J.S. Walsh's presentation to the University of Western Sydney's Physics and Industry Open Day
The health and welfare implications for horses and drivers of the Regal suspension sulky	This paper by Dr Alistair Lewis was orginally a reference supporting the inclusion of the Floating Link Suspension sulky in the Australian Technology Showcase (Quoted with permisson).
Sulky suspension systems—why?	From the first crude attempts in the 1950s to today's Floating Link Suspension: an explanation of the benefits.
Impediments to Innovation	On the difficulty of introducing new sulky designs in Australasia.
On Going Faster: Edgar Pickard's 1971 Auto-Balance Racing Sulky	A paper exploring the issue of sulky balance, originally published in 1987.
The Swedish Experience	A review of What we know about Sulkies and Wheels, a paper presented at the 1987 World Trotting Conference
The Light Harness Vehicle 4000BC to present	On the centuries-old struggle to push the envelope of light harness vehicle design. Some rare photos of world-record breaking pairs vehicles (four different designs).
Ancient Innovation: A History of the Dorsal Hitch	On the Single Shaft Sulky, the Double Dip sulky, the Wishbone Sulky, the Crown Hitch, the "reinbow" and "arc" harness.
Track Design for Harness Racing	A paper by JS Walsh originally published in the 'Lab report' section of the June/July 1997issue of the Equine Athlete.
Effect of increasing the banking of a racetrack on the occurrence of injury and lameness in Standardbred horses	Original paper by Dr D. L. Evans of Sydney University School of Animal Science, and J. S. Walsh, published in the October 1997 issue of the Aust. Vet J. Reference by a sports injury specialist
Driver Weight and Sulky Balance	An explanation of the effect driver weight has on a horse's performance in Harness Racing.