What is the difference in cutting forks versus a front tie down strap
For purely drag racing (no street whatsoever) cut forks work well, as long as they have ZERO rider sag.
Rider sag is the measurement of how much the forks and shock compress when you get on the bike. Setting the sag lets you change wherein the range your suspension 'sits' with you on board, and it gives the suspension an initial point to work in either direction.
But having cut forks makes for problems on the street, such as:
- Chassis can be too low for safe operation.
- Very stiff ride (not only uncomfortable, but a loss of front end traction around corners is more likely)
- No-sag generally means no dampening, which can lead to handling problems (wobble etc.)
A front-end strap can be loosened, to avoid the above on the street. A loose front-end strap can also be used as a tuning aid during operation on very slippery racing surfaces (providing more traction). It is also more economical.