Good condition, turns nicely, not sure if original, but if homemade very good, enables you to put a larger sprocket on the rear wheel, instead of the usual fixed type on these models.
If you wish to purchase this or anything else on the site, please call us and we can accept a debit card over the phone. You also can call or email us for other associated items, we have many more items in stock than are listed on the website. 01978 266087.