This sort of job can only be done by someone with a really long tool. Most bicycle workshops employ just such a person.
Failing that, consider using a torque wrench.
@Sharkstar 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.
This sort of job can only be done by someone with a really long tool. Most bicycle workshops employ just such a person.
Failing that, consider using a torque wrench.