Sub you are correct and not correct, yes the rake is fixed in the steering stem but can be increased or decreased by changing the angle in the stem itself. The trail can be changed increasing or decreasing the distance of the fork tubes to the stem of course but my question is which initial direction should i go for this particular motorcycle ? My riding skills have deteriated substancialy due to a broken/deteriating spine and my size being i am 6ft4 240- lbs 250 with only 8% body fat = im a big guy= not the size for motorcycle racing.
Is the rc51 considered slow at changing direction ect ect any help would be appriciated . Jake
What you're changing is not rake, but fork angle.
The rake is fixed, but the adjustable triple tree allows fork angle adjustment.
If you measure the distance from a vertical line through the wheel center with a line through the center of the fork tubes where they intersect with the road surface, that is trail.
By altering the fork angle, you're altering the intersect point of the line down the fork tubes.
Disregarding rake (since it's fixed), if you steepen the fork angle (using the triple tree adjusters), you'll be bringing that intersect point closer to the wheel's vertical intersect point, thus decreasing trail.
If you want to make your bike's handling quicker, then use the adjusters to decrease the fork angle (make it steeper).
That will shorten the trail number.
Again, don't go crazy with the adjustments. You're making the bike handle quicker at the expense of stability.