Ok. Normally wouldn't recommend Halfords for bikes but they have got cheap handle bars at present.
Probably not going to be the lightest but £5 for a double butted riser bar will do nicely for a hack bike or commuter.
Halfords offer an excellent range of Bike Parts and Bike Accessories at competitive prices! A range of superbly engineered components and accessories that combine the advanced technology and innovation needed to give you that extra edge. The Extreme MTB Rise Bar fits oversize 31.8mm stems.
Features and Benefits
* Super tough oversize construction
* Fits oversize 31.8mm stem
* 6061-T6 double-butted aluminium
* 38mm rise
* 680mm width
* 9 Degree bend