I know they have a longer wheelbase, and 60degree is good to help that.
I also know that some courses are technical, so that might be another reason why...
I guess my real question is, if I wanted to go 60+ on a streetluge, 60 degree trucks don't seem practical... why not 35 degree trucks?
I took my shitty homemade streetluge down a hill today and hit 50+ on RII trucks that were 50 degrees... and it got very unstable. That is what made me think, WHY 60 degree??
when I've tried to buttboard on so called "stable" geometry trucks I've had a hard time keeping the board from going from one rail to another. Once that happens, sympathetic oscillation tends to kick in and I get thrown. I tried buttboarding on my comp 60 upfront on my dh and it seemed to handle really well... dunno if they're related...
Actually the 50 degrees are more turny than the 60. If you look on randal.com there are 60, 50, 35, and 28. From the trucks turning the best the order should be 50, 35, 60, and 28. That's where the German magum?45 degree baseplates are the best turning you're going to be able to get. I would just suggest changing the bushings out if you're running the shitty yellow ones.
Well on here Chaput says that the luge trucks are the quickest turing, and we all know that if Chaput says it, it must be true.
Although in contrast to what chaput says straitforward, without any de-wedges the 50 and 35 degree trucks are "easier" to turn because they have much more leverage on the bushings then the 60 degree trucks do.
What trucks does everyone on this board run on their streetluges? RII ? RI DH trucks?
I ride R2's, but would ride Randal Luge trucks if I had the money, no questions.
As El Beefo said, a luge such a low centre of gravity, and a great deal of force exerted across a large area, very different to a longboard. Therefore, speed wobbles aren't as big a problem on a buttboard or dh longboard. Therefore, you can ride a 60deg baseplate because it's not like you need to worry about a high centre of gravity.
I have been running 3 60 degree plate luge trucks on my RB Luges for the last 3 years and it works the best. I have double black bushings on the front pair with the front most trucks shimmed a little to match the weight distribution on the pair of trucks when laying on it. They have about a 1/8 inch of thread showing on the king pin The rear truck uses the Blue and Black bushing and has over a 1/2 inch of thread.
The 60 degree plates will give you the most turn per lean angle. This is good for long wheelbase luges or for the highly technical roads that require slamming 90 degree turns, but requires just a little more force (strength) to make it turn. I had started out with 50's and although the luge was extremely stable at high speeds I had a problem making the sharper turns.
A short wheelbase luge, buttboard, speedboard can make the same turns with less steering angle and therefore they need less angle on the trucks or it will be unstable. the R-II's are great trucks for all around gravity racing.. many of the pro's have dropped the randal luge trucks and gone to R-IIb's because they cost the same as a luge truck axle. You can get the desire luge truck effect buy using the wedges properly.
More turn can be less stable unless you tighten up, then it requires alot more force and can cause the wheels to lift off the road. This is why most guys back off the angle on the rear. They can run a loose rear truck that does not turn much (stable) and then it will not lift and cause traction loss when you sit up and turn. More turn in front, less in rear.
I'm using 2 Randal DH speed trucks at 35 degrees (pic in link) on my 46lb luge. I know around 40mph it's very stable, i even sway back and forth on it on purpose to try and break it lose, great control. I had to replace the softer yellow pivot cups with the black ones (compliments of Randal himself). I want to use other trucks to compare it to. But thats just my experience with them.
Don J
Streetluge trucks, but why??
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