Hawk - Rear Shock - Page 2

Weldangrind · 08-27-2016, 01:36 PM

Quote:

Originally Posted by jimwildman

I will likely add a second shock mount lower on the swing arm.. also closer to the fulcrum so likely to make the suspension softer by increasing the leverage on the shock. ill need an adjustable shock.

I'm looking forward to that!

chuck · 09-04-2016, 07:50 PM

Jimwildman,tried your set up and ended up with a 3/4 rise,I'm not joking.

jimwildman · 09-06-2016, 06:08 AM

how is it with your weight on it?

I took it off road yesterday and 8m thinking its a bit soft.

I cut away a bit of the old mount so that it can get more angle, as well as to shape the part to,allow more angle before touching the swing arm.
so my mount is 3/4" forward but 1/2 imch lower.

again the amount of change in leverage is a bit extreme.

i might make a change at the top of the mount to try a bit less leverage.

jimwildman · 09-06-2016, 08:29 PM

tonight in an effort to reduce the effect of leverage i did basically the same thing at the top of the shock, the part required alot more shaping and I plan to weld this one, bolt is good for testing but alot of weight goes against the tank mount, so welding it to the old mount will solve that.

im almost flatfooted siting on the bike now. and its about half as soft. so better.
its probly as good as its gonna get with this shock.

even after welding this my old top mount will still be usable, there will just be a second placement for it.

Weldangrind · 09-07-2016, 10:53 AM

I'm looking forward to pics of that, Jim.

jimwildman · 09-08-2016, 12:59 PM

here is the chain side, as you can see i got greedy and went for too much drop, result is I had to heat the top frame rail and dent it with a ball peen, to make room for removing the bolt.

im glad i did tho as the seat is 32" high and so is my insem.

jimwildman · 09-08-2016, 12:59 PM

seat height

jimwildman · 09-08-2016, 01:01 PM

other side

jimwildman · 09-08-2016, 01:04 PM

seems i was holding the ipad upside down for some pics. embassasing.

here is a side view of the bike all reassembled.

i had to remove the plastics, seat, tank, air box, and move several wire looms out of the way to do this.

hertz9753 · 09-08-2016, 09:40 PM

I think I put my neck out of place. It is also hard to see anything with the tiny pictures.

jimwildman · 09-09-2016, 09:26 AM

The high speed wobble is diminished/gone. could it be the geometry was off due to being soo jacked up in the rear?

From what I know a small change in the rake and trail of a bike can reflect bjg changes in the stability.

Dropping the rear a few inches would have a small effect on the rake and trail.

I allways blamed the tires for the wobble.

Rake effects trail, so raising the rear lowers trail and makes the bike easy to turn, but less stabil at high speed straight line. lowering the rear increares rake and trail and increases the sraight line stability, wile incresing the effort required to turn in on a corner.

Im going riding at Limestone NY Tommorow so i will get a chance to test it in a big way.

jimwildman · 09-12-2016, 09:11 AM

does anyone know the spring weight on the hawks rear shock?

I've found a dimensionally vorrect shock, with adjustable dampening and preload with a spring weight of 1200. got me wondering what the stock shocks spring is rated at.

my bike performed well this weekend, but I did find myself wanting to add dampening.

Ariel Red Hunter · 09-12-2016, 09:24 AM

Quote:

Originally Posted by jimwildman

does anyone know the spring weight on the hawks rear shock?

I've found a dimensionally vorrect shock, with adjustable dampening and preload with a spring weight of 1200. got me wondering what the stock shocks spring is rated at.

my bike performed well this weekend, but I did find myself wanting to add dampening.

I wonder if anyone is surprised at the 1200 lb spring rate. I am, but only a little bit. The shock and spring work at a tremendous mechanical disadvantage on the Hawk. I wish Adam could get the factory to offer an adjustable damping shock as an option, or as a after sale part for those who want one.

chuck · 09-12-2016, 02:34 PM

Quote:

Originally Posted by Ariel Red Hunter

I wonder if anyone is surprised at the 1200 lb spring rate. I am, but only a little bit. The shock and spring work at a tremendous mechanical disadvantage on the Hawk. I wish Adam could get the factory to offer an adjustable damping shock as an option, or as a after sale part for those who want one.

Amen.

pete · 09-23-2016, 05:58 PM

Try CO2 in yer tyres.... it's temp sensive..
as the tyre heats up the pressure will increase
go on to the dirt where less heat is generated
and the pressure will drop...

..

09-07-2016, 10:53 AM	#5
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I'm looking forward to pics of that, Jim. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

09-08-2016, 09:40 PM	#10
hertz9753 Join Date: May 2016 Location: Bismarck, ND Posts: 868	I think I put my neck out of place. It is also hard to see anything with the tiny pictures. __________________ 2015 and 3/4 RPS Hawk 250. Most people would call it a 2016 but the MCO didn't.
	0

09-23-2016, 05:58 PM	#15
pete Join Date: Jan 2012 Location: ChCh , NZ Posts: 2,262	Try CO2 in yer tyres.... it's temp sensive.. as the tyre heats up the pressure will increase go on to the dirt where less heat is generated and the pressure will drop... .. __________________ 09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com
	0

09-04-2016, 07:50 PM	#2
chuck Join Date: Sep 2015 Posts: 436	Jimwildman,tried your set up and ended up with a 3/4 rise,I'm not joking.
	0

09-06-2016, 06:08 AM	#3
jimwildman Join Date: May 2016 Posts: 237	how is it with your weight on it? I took it off road yesterday and 8m thinking its a bit soft. I cut away a bit of the old mount so that it can get more angle, as well as to shape the part to,allow more angle before touching the swing arm. so my mount is 3/4" forward but 1/2 imch lower. again the amount of change in leverage is a bit extreme. i might make a change at the top of the mount to try a bit less leverage.
	0

09-06-2016, 08:29 PM	#4
jimwildman Join Date: May 2016 Posts: 237	tonight in an effort to reduce the effect of leverage i did basically the same thing at the top of the shock, the part required alot more shaping and I plan to weld this one, bolt is good for testing but alot of weight goes against the tank mount, so welding it to the old mount will solve that. im almost flatfooted siting on the bike now. and its about half as soft. so better. its probly as good as its gonna get with this shock. even after welding this my old top mount will still be usable, there will just be a second placement for it.
	1

09-09-2016, 09:26 AM	#11
jimwildman Join Date: May 2016 Posts: 237	The high speed wobble is diminished/gone. could it be the geometry was off due to being soo jacked up in the rear? From what I know a small change in the rake and trail of a bike can reflect bjg changes in the stability. Dropping the rear a few inches would have a small effect on the rake and trail. I allways blamed the tires for the wobble. Rake effects trail, so raising the rear lowers trail and makes the bike easy to turn, but less stabil at high speed straight line. lowering the rear increares rake and trail and increases the sraight line stability, wile incresing the effort required to turn in on a corner. Im going riding at Limestone NY Tommorow so i will get a chance to test it in a big way.
	0

09-12-2016, 09:11 AM	#12
jimwildman Join Date: May 2016 Posts: 237	does anyone know the spring weight on the hawks rear shock? I've found a dimensionally vorrect shock, with adjustable dampening and preload with a spring weight of 1200. got me wondering what the stock shocks spring is rated at. my bike performed well this weekend, but I did find myself wanting to add dampening.
	0