BARRELS

LAST OF THE DIECAST STD PISTONS

All pistons come complete with pin, rings and circlips.

Fitting instruction can be found here:https://www.vincentspares.co.uk/site_specific/docs/Piston_fitting_infos.pdf

The new pistons we stock are Forged pistons, All pistons come complete with pin, rings and circlips.

The new pistons we stock are Forged pistons, All pistons come complete with pin, rings and circlips.

The new pistons we stock are Forged pistons, All pistons come complete with pin, rings and circlips.

Available as sets or individually.

• Top rings – 0.046” or 1.18mm
• Oil Control – 0.117” or 2.99mm, two-piece item

See ring fitting information
https://www.vincentspares.co.uk/site_specific/docs/Piston_fitting_infos.pdf

Available as sets or individually.

• Top rings – 0.046” or 1.18mm
• Oil Control – 0.117” or 2.99mm, two-piece item

See ring fitting information
https://www.vincentspares.co.uk/site_specific/docs/Piston_fitting_infos.pdf

Available as sets or individually.

• Top rings – 0.046” or 1.18mm
• Oil Control – 0.117” or 2.99mm, two-piece item

See ring fitting information
https://www.vincentspares.co.uk/site_specific/docs/Piston_fitting_infos.pdf

Standard size (3.566", 90.58mm) on the outside diameter to fit new or very good condition muff. Interference fit of 0.006" cold.
Bore and top flange unfinished. After shrinking into muff bore to suit piston, face off top flange and machine oil feed.

Standard size (3.566", 90.58mm) on the outside diameter to fit new or very good condition muff. Interference fit of 0.006" cold.
Bore and top flange unfinished. After shrinking into muff bore to suit piston, face off top flange and machine oil feed.

Supplied unbored and without the feed hole for you to bore to suit your requierments.

We can do this for you - order ET21AS-BORING. If you are not buying pistons at the same time send your pistons to us with details of clearance required.

When you order an ET22AS cylinder assembly we can bore it for you.

We dont drill oil hole anymore as it vary from bike to bike.

If you are not buying pistons at the same time send your pistons to us with details of clearance required.

Two piece stud threaded in centre for use with 90mm bore muffs and NorVin and other specials to facilitate head removal.