BSA A10 OHV 650cc 1950-1962
Compression ratio 7.25:1 (flat top type)
Size: Std = 70mm
Piston kits = Pistons (2), Ring sets (2), Piston pins (2), clips (4)
IMD Brand piston kits.
Designed by IMD, not a copy or re-boxed, unique to IMD & far superior to all others available elsewhere.
Cylinder sleeves / liners (2) Westwood UK.
You will need a machine shop to install this kit
Material Specification: Centrifugally spun grey cast iron, Hardness 200-270HB. 93-104 HRB
Euro Spec. DIN 1691 GG30 . US Spec ASTM-A48 / Class 30
All new motorcycle items listed are aftermarket/pattern parts unless otherwise stated in the description. Any reference made to the original manufacturer's name or part numbers (O.E.M.) is done for information only and does not imply that the items are original. Where possible all parts are listed by part number (O.E.M.). Please reference your parts list for the correct applications.
Please note: All motorcycles parts sold on this site need to be fitted by a qualified engineer using the correct appropriate equipment & machinery and using necessary technical manuals. No liability can be accepted for parts incorrectly fitted, and any failure of such parts after fitting.
Established in 1989, IMD Pistons is one of the largest piston suppliers in the UK. Based in Cheshire, we distribute parts for a wide variety of motorcycle manufacturers worldwide. We have over 6,000 reviews on our eBay store, and work with a host of affiliates. If you would like more information, please don't hesitate to contact us.
Please contact us for more information
Shipping (UK, Ireland & Channel Isles)
Items will be dispatched on the same day, if the order is placed before 3PM GMT, and if the order is placed after 3PM, please allow 1 working day. Items are sent mainly via Royal Mail Tracked, and for higher value items, we use DPD (Next Day). If you wish for your items to be sent via courier, please contact us and we can arrange this.
Items will be dispatched within 1 working day of order confirmation. We aim to process all international orders before 1pm, and if you place an order after 1pm GMT, then your items may be processed the next day due to our courier collection time. Our items are mainly sent via DPD Local, however this is not possible for all orders and locations. We understand that some postal services in certain areas face significant delays, so for any shipping questions, or to obtain a quote for a courier delivery, please contact us.
We will offer a full refund, partial refund, or an exchange for any items wanting to be returned within 30 days from purchase date, and we do our best to ensure that you receive the correct parts before refunding you, as we appreciate the items that we sell, can be somewhat hard to locate from other sources. If you wish to return your goods, please kindly meet the conditions that we provide below.
Ensure that the items are not damaged, or used. If the items arrive to our premises and there are signs of use / damage, then you may be liable to a charge. We understand however that some of our items are somewhat hard to check when installing, so we do allow certain damage / scratches etc.
Ensure that the original invoice which we provide, is inside the parcel when returning, and if this is not possible, please write / type on paper, your name, your order number or invoice number (IMD-XXXX), and reason for return. We may call you upon receipt of the returned goods, if no communication has been made prior to the return.