Pistons for Classic Bikes, BSA, Triumph, Norton, Royal Enfield

We carry a huge range of pistons for classic bikes. These vary from Genuine New Old Stock Hepolite pistons to high quality reproduction pistons made by Omega, or Gandini GPM. We do also carry some other unbranded reproduction pistons. Below you will see a small range of our pistons, however, if you can’t find what you are looking for, please contact us!

Also see Piston Ring Clamps

Hepolite
Hepolite was the brand name for Hepworth & Grandage who merged with Wellworthy pistons Ltd (Ferry Bridge) in 1989 to form the well known A E Piston Products Ltd.

A E Pistons Ltd were distributors for Hepolite, Glacier and Wellworthy products which is now part of the Federal Mogul Group.

Update, the Hepolite brand name has now been purchased by Wassell Ltd and are now being produced in Taiwan. We can get these pistons but we always advise purchasing Genuine New Old Stock Hepolite wherever possible!

Also Heplex

GPM  Gandini Pistons and EMGO Pistons & Omega Pistons

Genuine Hepolite Pistons
Most of the pistons we stock are Genuine Hepolite or Original BSA, Triumph, Norton, Royal Enfield etc. Where we cannot supply genuine we can offer an alternative GPM equivalent.

Below are just a few examples of our range of pistons, please contact us with your requirements.
We also stock large quantities of piston ring sets.

BSA A65 Pistons 1962-72

BSA Pistons

Royal Enfield Pistons

Part #	Description	Models
26761 (8645)	2 3/4 (70mm), Flat Top, Side Valve, STD	Royal Enfield 350cc ’39/40
26761 (8645)	2 3/4 (70mm), Flat Top, Side Valve, 015	Royal Enfield 350cc ’39/40
25064 (8600)	64mm, Flat Top, STD	Royal Enfield 250cc ’39/40 Model D
25064 (8600)	64mm, Flat Top, 015	Royal Enfield 250cc ’39/40 Model D
45376	70mm, 8:1 Compression, STD	Royal Enfield Meteor Minor Sport or 250/350 models as High Compression

Triumph Pistons

Pistons for Triples

BSA Rocket 3, Triumph X75/T150/T160

These piston assemblies come with rings etc, although we always recommend using Genuine Hepolite rings with pattern pistons.

17844    9:1 Compression    Std/020/040/060
For Triumph Pre Unit and Unit Models
6T/TR6/T120/T110
MADE IN ENGLAND

Also R11050 Piston Ring Sets
Std Std/010/020/040/060

Norton Pistons

Piston Hints & Tips

When fitting new pistons, always use the clearance stated in your workshop manual, or as per manufacturer’s instructions.