It's a steel Sunn DIX from '93. Was so called as it was a ltd edition for the company's 10th birthday, weighted 10kg (XTR parts) and cost 10,000f
Bought it second hand and had it as a main bike, then a commuter, then the frame was hung up a wall for about 5 years. Last year revived it once again as a commuter
Old steel never dies
I need to work out a way to avoid dropping the chain off the single ring - happens about once a day when shifting. I usually manage to put it back with the foot while riding, but the other day it happened going down Croydon Underpass - had to stop on the side as it was too dangerous - scary!