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  1. #1
    Petty Officer 1st Class 83Evinrude's Avatar
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    Default Bimini Top - How fast can you go? & What length and Height?

    I'm looking at installing a bimini top for our 19ft Glastron runabout, how fast can you run the boat with one of these up?

    My post #13 below has added questions about length and height.

  2. #2
    Chief Petty Officer Mkos1980's Avatar
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    Default Re: Bimini Top - How fast can you go?

    I've been up to about 40 with mine with no probs. (Opened) I prob wouldnt want to go anymore though. With it up and closed I've gone 60+
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  3. #3
    Lieutenant Commander redone4x4's Avatar
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    Default Re: Bimini Top - How fast can you go?

    ive gone 40 also. mine fits pretty well and is adjusted just right. this is with it open. I didnt even think twice about it, we do it all the time now. WOT even sometimes, i never take it down.
    Samuel Adams. Always A Good Decision.
    1987 5.0 OMC capri 1950CX bowrider, 3 bow 6 ft. Westland bimini

  4. #4
    Chief Petty Officer rjlipscomb's Avatar
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    Default Re: Bimini Top - How fast can you go?

    I have a Glastron 25 ft runabout, 1st thing I do is put up the top. Run the boat at will without concern for the top. When I'm done boating for the day, I take the top down (Fold away and cover in the upright position).

    RJLipscomb
    2005 Glastron GX-255
    Volvo 5.7 Gi-E w/ DP-SM

  5. #5
    Petty Officer 3rd Class Bluepike's Avatar
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    Default Re: Bimini Top - How fast can you go?

    I put mine up in the spring and leave it on until it is time to shrinkwrap it for the winter. I rarely see 40 mph but after several seasons without a problem and not getting sunburned, I'll keep going that way.

    The downfall is that it acts like a sail on windy days when I am docking the boat.

  6. #6
    Petty Officer 1st Class
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    Default Re: Bimini Top - How fast can you go?

    45 and no problems- have done 70 on the highway furled and covered and no problems

  7. #7
    Commander 45Auto's Avatar
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    Default Re: Bimini Top - How fast can you go?

    Mine goes up every time we're going to use the boat. The bimini has a little tag that says "Do Not Exceed 40 MPH With Top Up". It also usually has a 100" diameter tube strapped to the top of it. I generally stay below 50, but several times have run up over 60 (with the tube on top) without thinking about it.

    I also tow it down the highway between 50 and 60 MPH with the tube strapped on top of the bimini , for a distance of about 10 miles each way.

    Just make sure it's adjusted properly and the straps are tight and you'll never know it's up there - except for the shade!
    Any opinions expressed above are worth exactly what you paid for them!

  8. #8
    Lieutenant Junior Grade Thad's Avatar
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    Default Re: Bimini Top - How fast can you go?

    I have the stainless steel back mounts and straps in the front. I have run 40mph no problems. I found at higher speeds the straps were beating my windows to death. Then I remembered what the guy that made my cover told me...put a twist in the strap. Since then, 50 and no issues. Just make sure everything is snug and taut.
    Livin' the Dream...Chasing Life

  9. #9
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    Default Re: Bimini Top - How fast can you go?

    I think the real issue is not damage to the top but effect on your speed/efficiency. If I'm heading out or in, or moving, I just close it and bungee it.
    Mine has strap in the rear and bar in the front. I wonder if the previous owner installed it backwards. Works fine and no apparent problem driving; I'm usually at 30 mph
    21' Sea Hunt 150 Yam
    A man of constant boat tinkering.

  10. #10
    Lieutenant Junior Grade Thad's Avatar
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    Default Re: Bimini Top - How fast can you go?

    Quote Originally Posted by Home Cookin' View Post
    I think the real issue is not damage to the top but effect on your speed/efficiency. If I'm heading out or in, or moving, I just close it and bungee it.
    Mine has strap in the rear and bar in the front. I wonder if the previous owner installed it backwards. Works fine and no apparent problem driving; I'm usually at 30 mph
    21' Sea Hunt 150 Yam
    Yup, sounds bass akwards to me

    There is no doubt in my mind that you loose speed and efficiency. But then again, I am not the most efficient person when it comes to boating.
    But when the wife is hot, shade and wind!
    Livin' the Dream...Chasing Life

  11. #11
    Petty Officer 2nd Class Kracken's Avatar
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    Default Re: Bimini Top - How fast can you go?

    I have done 50 with the top up, it does effect top speed.

    I have a euro-style bowrider and my supports are connected to the windshield both the main pipes and the supports. I worry that it might put to much stress on the windshield. I do not know for sure but itís in the back of my head at speeds over 35. Does anybody know if that may cause a problem?

  12. #12
    Commander 45Auto's Avatar
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    Default Re: Bimini Top - How fast can you go?

    From Thad:

    put a twist in the strap
    This is EXCELLENT advice that I've never seen anywhere else. I used to make sure my straps were straight (no twists) because it looked "nicer". The straps would vibrate so bad that one of the stainless steel clips is worn half-way through. One day somebody put one on twisted and it was perfectly smooth and quiet. Since then I put 3 or 4 twists in each strap before clipping them to the boat and they don't vibrate at all.
    Any opinions expressed above are worth exactly what you paid for them!

  13. #13
    Petty Officer 1st Class 83Evinrude's Avatar
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    Default Re: Bimini Top - How fast can you go?

    Does it make any difference whether the bows are aluminum or stainless steel? We only boat in fresh water, I was meaning in terms of strength.

    I'm also trying to decide between a 3 bow or 4 bow (6ft or 8ft) on our 19ft bowrider. If I started a 6ft at the top of the windshield it would not quite cover the passengers on the rear couch. If I started an 8ft top six inches in front of the top of the windshield it would cover all the rear couch and extend six inches over the sundeck over the motor.
    This seems like I would get better coverage to me.

    Will it look weird if it starts before the top of the windshield? Also, on height I am trying to decide whether I want full clearance to stand up or a lower profile look. Our boat is fairly low profile, what type of height have you installed on your boat?

    Where is the best place to get a good deal on a top?

    All advice appreciated.
    2004 Glastron SX 195
    Volvo 5.0GL-D SX-M

  14. #14
    Petty Officer 2nd Class TJDave's Avatar
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    Default Re: Bimini Top - How fast can you go?

    Quote Originally Posted by 45Auto View Post
    From Thad:



    This is EXCELLENT advice that I've never seen anywhere else. I used to make sure my straps were straight (no twists) because it looked "nicer". The straps would vibrate so bad that one of the stainless steel clips is worn half-way through. One day somebody put one on twisted and it was perfectly smooth and quiet. Since then I put 3 or 4 twists in each strap before clipping them to the boat and they don't vibrate at all.
    That's a great old trick flatbed truck drivers use to keep their straps from flapping.
    1993 Reinell 2000brxl 20' OMC Cobra 5.0 EFI
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    1973 Gulfstream 18' 165hp Mercruiser
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  15. #15
    Petty Officer 1st Class Nico2112's Avatar
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    Default Re: Bimini Top - How fast can you go? & What length and Height?

    My Glastron SSV170 came with a factory installed Sunbrella bimini, and it has a tag that states "Max speed 35 MPH".
    '09 Glastron SSV 170 / Yamaha F75 HP

  16. #16
    Chief Petty Officer
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    Default Re: Bimini Top - How fast can you go? & What length and Height?

    I was going about 50 trying to beat a storm to the boat ramp when I was hit by a gust and it pulled the top of the window frame off. After repairing it I generally stay below 35 with the top up.

  17. #17
    Lieutenant Junior Grade Thad's Avatar
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    Default Re: Bimini Top - How fast can you go? & What length and Height?

    Quote Originally Posted by drrpm View Post
    I was going about 50 trying to beat a storm to the boat ramp when I was hit by a gust and it pulled the top of the window frame off. After repairing it I generally stay below 35 with the top up.
    OUCH!

    I take it down in moderate to high winds. The frame will obviously hold, I just did not want the top to tear. Never thought about it taking the window frame off.
    Livin' the Dream...Chasing Life

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