Article [13] ST1300 - Screen Mod

[beeker]

My 'just completed' mod. Bought 2 'Mending plates' from the fence bracket section section at Rona (lowes, home depot). About $1,20 each. Enlarged existing holes where possible. Hacksaw cut to size. Grinder to round corners. Plates (2 X $1.20) 4 X 6 mil nuts and bolts (approx $3) paint and primer aerosols (about $13.00). Original trim covers fit back on perfectly when completed. Shopping, painting and drying was the majority of the time investment. The vertical arms are angled outwards slightly so that the brackets will mount flush to the curved windshield. The extentions were placed in a vice and each bent inwards slightly so that the mounting holes to the windshield would align without placing a twisting stress on the vertical arms.

 

[Catmandu2]

Looks solid, Beeker,,, be sure to let us know how it performs for you once you get a chance to test it. Do you feel a change in turbulence or back pressure ?? Cat'

My 'just completed' mod. Bought 2 'Mending plates' from the fence bracket section section at Rona (lowes, home depot). About $1,20 each. Enlarged existing holes where possible. Hacksaw cut to size. Grinder to round corners. Plates (2 X $1.20) 4 X 6 mil nuts and bolts (approx $3) paint and primer aerosols (about $13.00). Original trim covers fit back on perfectly when completed. Shopping, painting and drying was the majority of the time investment. The vertical arms are angled outwards slightly so that the brackets will mount flush to the curved windshield. The extentions were placed in a vice and each bent inwards slightly so that the mounting holes to the windshield would align without placing a twisting stress on the vertical arms.

 

[beeker]

Looks solid, Beeker,,, be sure to let us know how it performs for you once you get a chance to test it. Do you feel a change in turbulence or back pressure ?? Cat'

I am ready to test as soon as I can roll! Just need another set of hands to tip her off the centerstand dolly. Checked the air pressure today and I am ready and willing! Unfortunately since I have not ridden since last fall my observations will be highly subjective but I will post to the best of my ability.

 

[The Dan]

I will post to the best of my ability

Please do.

 

[MaxPete]

This looks great Beeker - and very solid with good use of inexpensive materials. I am getting my bike out early next (come heck or high water) and will be looking to doing this mod soon.

Pete

 

[beeker]

I am ready to test as soon as I can roll! Just need another set of hands to tip her off the centerstand dolly. Checked the air pressure today and I am ready and willing! Unfortunately since I have not ridden since last fall my observations will be highly subjective but I will post to the best of my ability.

Have been out a couple of times with the mod to 'stretch my legs'. NOW, I am pretty green re: the ST and didn't realize that the wind shield had 2 dedicated settings as part of the mounting bracket (low and high). When I re-assembled with this mod I mounted in the low position. With the wind shield fully raised the airflow could be felt deflecting up above my visor but it did hit the top of my helmet (loud and buffeting). I am 6' tall. The top of the screen was a couple of inches below my line of sight. I remounted the screen in the higher position and the stream seems to pass completely over me now (much quieter inside my helmet). There is a lot of air coming under the screen, passing over me and the feeling of 'suction' (back pressure) is gone. I think I have to ride in the rain to further evaluate

 

[MaxPete]

Cool - results so far sound pretty positive.

Keep up the great reports.

Peter

 

[beeker]

I was quite surprised at the amount of space under the windshield when ir was raised. When driving the 'quiet' zone where turbulence around the helmet ceased remained at close to maximum height. There is a great deal of air coming under the windshield and it hit my body. Any feeling of 'back pressure' was gone but i was unsure of whether I could call the mod an improvement until today. I was driving in overcast conditions at highway speeds. Windshield was full up and I was peering just over the top lip. I can feel the deflected wind from the top of the windshield going to the top of my helmet and a column of air coming under the screen and hitting me in the chest. I noticed that it started to rain because raindrops were collecting onto my visor ...as well as the windscreen. I think in a heavier rain I would get quite wet behind this modded screen. I intend to remove the brackets and see of I can reduce the adjusted area by 50%.

I am ready to test as soon as I can roll! Just need another set of hands to tip her off the centerstand dolly. Checked the air pressure today and I am ready and willing! Unfortunately since I have not ridden since last fall my observations will be highly subjective but I will post to the best of my ability.

EDIT: After a summer of riding I can report the following. The mod allows a tunnel of air to flow under the windshield and breaks up back pressure. Definitely helps in hotriding conditions. In the high position the shield creates movement in the front end in buffeting conditions esp a speed. I need to assess my sag and that would help handling. A drop to the lower windshield setting reduces the 'dancing. Protection is also reduced at all settings. Pillion reports buffeting in all settings. I am going to reduce the rake the and try again before the season ends. The plan now is to look for better windshields. Sorry to say, IMO this one did not work for me.

 

[Rocketroddd]

Great job and very ingenious !!

 

[oilspot]

I know this is an old thread. Does anyone have any updates on how they finalized their settings on the brackets?

 

[RichKat]

I moved mine out and down 1" and also tilted back about 12 or 14°, makes a huge difference. I like looking over instead of through the shield, so that's why I lowered it, the tilt back helps with turbulence as much more air comes under the shield. Besides it looks cool with the shield that low

 

[Hound]

Looks very similar to my set-up.





The alloy has got a bit grotty after all those years on the bike so deserves a clean-up.

 

[RichKat]

Almost exactly the same, I painted mine satin black

 

[Hound]

I could never get paint to stick satisfactorily to aluminium, even with an etching primer, so I was lazy and left them raw!

 

[Obo]

I have a similar type setup using the OEM screen and homemade inserts. Can't recall the positions of the OEM screen bolts though as I think there are different holes.

Even with this I still get buffeting. Am thinking about adding an adjustable lip like the one @Happy Rob has.




Here's mine:

 

[Jocko]

Thank you to everyone for sharing their designs, I made a set of spacers from for my bike and they work great!



I made them from 1/8" aluminum and they are pretty easy to make yourself. I have attached a 1:1 scale dimensioned pdf to this post so you can print and trace the pattern to make them yourselves.

If anyone is interested in purchasing them, I can make a set for $25 with free USA shipping. They will be like the attached pics and painted black with pressed in M6 studs so you can use the nuts from the bike and also includes an extra set of M6 nuts needed to mount them, so all hardware is included. Installs in 5 min. Feel free to message me if you are interested or have any questions.

Jason

 

[snazzy_wheels]

Resurrecting an old post.

I had an ST1100 with a GIVI windshield and it was perfect to me. Recently an "animal" crashed against the bike while it was parked on the side walk (hit an run) and it flipped over the side stand crashed against a building wall. The bike can be fixed but I decided to move on and bought a ST1300 because, in my mind, it would be a better bike.

The 1st thing i notice in ST1300 is that it's way hotter than the ST1100 and, although the ST1100 had a fixed windshield I never got uncomfortable with heat as I do in ST1300 specially when I raise the windscreen. The higher I raise the windscreen the worst it gets because it doesn't seem to get any airflow to "move" the hot air away.

Besides that I get a lot of wind noise in my helmet. The only way I can have silence is with the windshield all the way up which "concentrates" the heat from the engine around me and the edge of the screen is right in front of my eyes (the screen is set to the lowest position in the mounting points).

The difference in wind noise is very noticeable (annoying) when compared with the ST1100 as you can see in this video. The helmet is the same in both bikes, just the camera location changed from the side of the helmet to the chin area and the mic is in the exact same location inside the helmet.

Basically the wind noise goes from annoying with the windshield all the away down, to unbearable in the intermediate positions to silent all the the way up (feeling a lot of the engine heat).

My question is two fold:
1 - Does this bracket mod solves the wind noise problem?
2 - Does this bracket mod helps to alleviate the heat problem as it allows for more air flow under the windshield?

I'm 1,85cm (don't know the measurement in inches, but i guess it's around 6 feet) and have the seat set on the intermediate height setting (so I don't have my knees bended a lot).

 

[divemaster5734]

Hi guys,

I've read loads of different threads on here about all the different screens available, and also some of the mods that have been done to improve the air flow and buffeting situation.

I have a Cee Bailey with vent, it's been on for the last 12 years and 50k miles, and out lasted the OEM windshield motor assembly.
No issues.

 

[CruSTy]

Thank you to everyone for sharing their designs, I made a set of spacers from for my bike and they work great!



I made them from 1/8" aluminum and they are pretty easy to make yourself. I have attached a 1:1 scale dimensioned pdf to this post so you can print and trace the pattern to make them yourselves.

If anyone is interested in purchasing them, I can make a set for $25 with free USA shipping. They will be like the attached pics and painted black with pressed in M6 studs so you can use the nuts from the bike and also includes an extra set of M6 nuts needed to mount them, so all hardware is included. Installs in 5 min. Feel free to message me if you are interested or have any questions.

Jason

Mine were built with a couple extra degrees of lean back in hopes of reducing load on the mechanism. This also has the benefit of reducing turbulence.