2015 AEROZINE 40T Cassette Expander Extender

Bought recently from eBay for £45 (link below) only used a handful of times before I used a 42t version (also for sale), then decided to swap my all mountain setup for a downhill bike, I feel they owe me some money back as I've spent about £80 on them - hence the sale of both cogs. Its a brilliant bit of kit, perfect for a 1 or 2x10 setup for a fraction of the cost of an 11 speed setup.

Worth mentioniong - the anodised finish on the teeth of these expanders begins to wear after the first ride, they aren't as worn as they look!

http://www.ebay.co.uk/itm/AEROZINE-Sprocket-Adapter-Cog-40-T-42-T-Cassette-Expander-Extender-Shimano-Sram-/291321120275?var=&hash=item43d4178613

happy to deliver locally or post

cheers - Sam