PUBLICATION: ILLUSTRATED WORKSHOP MANUAL – 1939-45 BSA M20 – (INCLUDES WAR DEPT) By View cart “PISTON 8.5:1 – c/w RINGS CIRCLIPS PINS – JP PISTONS – PRE-1956 MODEL G18 G80 CR*” has been added to your cart. $22.41 INSTRUCTION BOOK WD M20 Out of stock SKU: ITHICA/170 Category: Uncategorized Related products CABLE – THROTTLE CABLE* $39.95 Read more PLATE – REAR NUMBER PLATE – BIG 4 ETC* $165.19 Read more SHOCKS 11.9″ – REAR – SHROUDED – TRI 350 500 – 135 LBS (PR) $172.24 Add to cart SLEEVE – BRAKEROD SLEEVE* $11.10 Read more