CTRL + plus, or hold CTRL whilst scrolling up on the mouse scroll wheel.
using minus or scrolling the other way will do the reverse.
edit: way too slow!
@Arducius started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
CTRL + plus, or hold CTRL whilst scrolling up on the mouse scroll wheel.
using minus or scrolling the other way will do the reverse.
edit: way too slow!