My solution.... Flatbar and bolt (from local 'bolt and nut' shop) and couple of spacers. Most importantly, works a charm and cheap to build... if you can find the bolt.
Matabeng Pass in Lesotho, near Sehlabathebe National Park. Our dog, Gangile, followed us up on the bikes. Awesome descent down to Bob Philips campsite. Long drive back to Sani...
What bike do you have? Check that one of your cable housings is not to short. By going through the travel of the bike, it stretches the housing causing ghost shifting...
