Warning not all pneumatic trolley wheels are the same - if the specification does not say 4 ply heavy duty - this means it is economy 2 ply.
Printed on the tyre you should have 16x4 or maybe 4.80 x 4.00 - 8. To fit 25mm axle and measures 40cm x 10cm. The bore measures 26mm wide x 75mm deep (i.e. 75mm+ is the clearance you will need on your axle)
Important: The hub is fitted with removable black inserts - they do not need to be removed if you have the standard 25mm axles.
Please note that these are 4 ply specification - this means that they are rated for a higher load than 2 ply.
In practical terms this means that no matter what boat they are used with (Optimist upwards) - they will be far more durable and less likely to puncture.
2 Ply tyres are cheaper - but we do not recommend them for any class of boat
• We buy huge numbers of these wheels - which allows us to sell them at less than the price of the 2 ply tyres.
• It is common for the lower specification 2 ply tyres to be sold for £19.95 i.e. Indespension and most Marine retailers
Please note that due to the weight of this item it is not suitable for delivery by Royal Mail and normally has to be sent via courier @ £6.99. If you order 1 trolley wheel or 3 - the delivery cost is still the same @ £6.99.(Mainland UK) From 4 to 9 wheels the delivery is £9.95 (Mainland UK)
From 10 to 14 wheels the delivery is £14.95 (Mainland UK)