Holy Moley!

[Megadan]

Used my Hawk to get go work today since it was a nice 60 degrees outside. I think I found my setups happy place, because I managed to hit 75mph in the exact same stretch of road where I previously maxed at 71. I was also able to cruise along at 60 with more than 1/4 turn of throttle left.

That speed on a Hawk with occasional cross winds is really scary if you are wondering. Shinko 705s also make a lot of vibration. My behind was getting a bit tingly lol.

Oh, and this is with the silencer in on the exhaust.

[JerryHawk250]

LOL, yes it does get a little scary after 70 mph. You are now officially in the 75 mph club. lol

[Megadan]

Originally Posted by JerryHawk250

LOL, yes it does get a little scary after 70 mph. You are now officially in the 75 mph club. lol

Yeah, and I havent even put the ported head on yet. Maybe I can join the 80mph club lol

[JerryHawk250]

Originally Posted by Megadan

Yeah, and I havent even put the ported head on yet. Maybe I can join the 80mph club lol

I think Azhule has done 87mph so is possible.


http://chinariders.net/showpost.php?...01&postcount=7

[2LZ]

Originally Posted by JerryHawk250

I think Azhule has done 87mph so is possible.


http://chinariders.net/showpost.php?...01&postcount=7

Yah but he has the advantage of being quite light. That's moving for someone Dan's size on such a tiny bike. If his jacket would have opened, it would have morphed into a wing suit!

[JerryHawk250]

Originally Posted by 2LZ

Yah but he has the advantage of being quite light. That's moving for someone Dan's size on such a tiny bike. If his jacket would have opened, it would have morphed into a wing suit!

morphed into a wing suit!

[shanesaw]

I haven't rode bikes a long time or a whole lot in general. I don't really know what good forks are supposed to feel like...So maybe that's why I haven't noticed the sketchyness at fast speeds...seems just like riding fast to me...
I can relate with the tingling in the backside though Dan! Haha. That bike sure does vibrate at high speeds.

The only thing that sketches me out is the picture that appears in my head of the bike rattling/falling appart high speeds. I can't help but always think about that when I'm riding at high speeds...

[JerryHawk250]

I found that when I run the 17/40 sprockets I don't have the vibration and the bike just feels safer at higher speeds. With the 15/40's I feel lots of vibration at higher speeds and 16/40 not as bad. I think the high rpm's just makes your brain think you are going faster that you are. I've been running 17/40 lately as I have been doing more street riding.

[Megadan]

Originally Posted by shanesaw

I haven't rode bikes a long time or a whole lot in general. I don't really know what good forks are supposed to feel like...So maybe that's why I haven't noticed the sketchyness at fast speeds...seems just like riding fast to me...
I can relate with the tingling in the backside though Dan! Haha. That bike sure does vibrate at high speeds.

The only thing that sketches me out is the picture that appears in my head of the bike rattling/falling appart high speeds. I can't help but always think about that when I'm riding at high speeds...

There is no real "feel" to it other than to say, you should always feel in control of the bike. The Hawks have a very firm rear shock relative to the front. This tends to make for very slow to react and imprecise handling. Firming up the front end dampening helps a ton with inspiring confidence in maneuvering. Not just at high speed, but any speed.

Setting the right rider sag will ensure that you have the proper amount of compression travel left to handle bigger bumps. Combine the two aspects together and you will be amazed at how different your bike feels.

Try changing out the fork oil, and you will start to understand a little bit better.

Originally Posted by JerryHawk250

I found that when I run the 17/40 sprockets I don't have the vibration and the bike just feels safer at higher speeds. With the 15/40's I feel lots of vibration at higher speeds and 16/40 not as bad. I think the high rpm's just makes your brain think you are going faster that you are. If been running 17/40 lately as I have been doing more street riding.

Yeah, getting those RPMs down makes a big difference in how the bike feels at highway speeds. With my gearing and tire setup, I sit right in the peak torque range of the engine in 5th gear at 60-65mph, 6000-6500rpm. This gives me the most pulling power in said gear, the engine operating in it's peak VE range and highest intake velocity, also making for really good fuel economy even at those speeds. It also keeps it just below what I call the "buzzy" zone, which is past 7000rpm.

Most of the vibrations I was feeling in the seat was from the tires. They may be 80/20 tires, but they are still big blocky treads. They begin to let you know it past 60mph.

[wamey]

I'd like to submit a suggestion for your next big project Dan

[timcosby]

probably get another 10-15 mph with those fairings

[Cravin01]

Sun dial and a yard stick.

LOL... I have recently experienced being hit with the wind from cars driving on the opposite side of a two lane road.

Although it didn't move me, I was surprised at at the amount of push it put on the bike due to light feel on the road at 50ish... I don't think I'm ready for 80!

[Ariel Red Hunter]

Originally Posted by Cravin01

LOL... I have recently experienced being hit with the wind from cars driving on the opposite side of a two lane road.

Although it didn't move me, I was surprised at at the amount of push it put on the bike due to light feel on the road at 50ish... I don't think I'm ready for 80!

Wait until a semi is coming the other way. They push a wall of wind. But they are even worse when they are passing you on a 4 lane. You are in their wind shadow much longer, with buffeting as they go on by. The way I dealt with this is to be on the right side of my lane, then head towards the left side of my lane, then back more to the right. Kind of a shallow "S", if you will. Obviously, don't over do it...ARH

[Lord of Noodles]

Originally Posted by wamey

I'd like to submit a suggestion for your next big project Dan

Seriously i would be interested to see what you could milk out of the hawk if you were a slim build changed the sprockets for max top speed and fabricated a plexiglass shell basically on in to negate most of the wind drag. I bet you could get these things flying. It's a lot of work but it would be a cool project to see someone do who actually has the time to care to do this lol.

[Megadan]

Well, I am built like a mach truck, so that throws that idea out the window. Plus, by the time you got it to the point it could maybe do 100mph, it wouldn't be a Hawk anymore.

It took a custom cam, piston, and head porting with really high compression for CCW to get their "Tha Heist" land speed bike to go over 90mph on the salt flats with 23whp.