A Penske shock from my Honda SP1. It's a two way adjuster model, 8983 with details available at:
http://www.penskeshocks.co.uk/motorcycl ... mper/2way/
The shock is in need of an overhaul and service as the rebound is now very, very slow to react so the bike sits squat for a while. I removed the unit a while ago once the problem arose and it's been stored ever since as I replaced it with Ohlins after a deal came up to good to miss. The bike has been used on the road and the paint has lifted a bit on the spring plus the external reservoir has wear marks from where it was mounted. All of this is cosmetic with nothing bent or broken.
A really nice piece of kit, very well made and lots and lots of adjustment to suit all styles of riding. Penske UK retail these for £650 and are pretty helpful when it comes to questions.
As stated this will need servicing before being fitted and this is reflected in the price.
£135 delivered to the UK.
Lots of photos available
Cheers.