Has anyone actually put a hole in a radiator?

Discussion in 'GS Boxers' started by River-Runner, Dec 5, 2017.

  1. River-Runner

    River-Runner Been here awhile

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    Just got my GSA this fall.....trying to get it set up to travel after the first of the year.....trying to figure out if I need radiator guards? Lots of places to spend a couple of hundred dollars.

    Has anyone actually put a hole in a radiator on a GS/GSA? Looks to me that if I hole a radiator, that might be the least of my problems that day...........
    #1
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  2. able ktm

    able ktm Adventurer

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    Not on a GS but on a 1200 Multistrada, It will really spoil your day I can assure you.

    I was washing my 1199 a couple of weeks ago and discovered quite a big hit on the guards on that radiator.

    Radiator and headlights always cop it bad on my bikes.
    #2
  3. kenny robert

    kenny robert Long timer

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    i have with a drill bit and not on purpose neather nor on a beemer but it is darn easy to make holes you dont want
    #3
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  4. JR356

    JR356 Long timer

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    The BMW radiator guards are very reasonably priced.
    Also number of TT,etc copies showing up on eBay for low $$.

    JR356
    #4
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  5. NZRalphy

    NZRalphy Been here awhile

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    I remember on Advrider in 2013 within a couple of months of release.....an Australian bloke put a hole in his GS-LC from a stick thrown up buy his mate out in front.
    #5
  6. Deano747

    Deano747 Been here awhile

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    Rock through one on an FJR.

    4 hour wait for roadside service to come and collect the bike & me. I was a long way from anywhere.
    #6
  7. bikeroz

    bikeroz Long timer

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    This guy did.
    plus it didn't help that he had rad guards on either.

    Attached Files:

    #7
  8. filterwrench

    filterwrench Been here awhile

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    Yes I had a rock hit the right rad on my GSW on th I90 at speed. Coolant covered my visor and caused me great stress for about 10 seconds untill I got things under control. I now have rad guards that I found on Ebay for around $25. They are actually well made. There is a thread on here about rad guards.
    #8
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  9. ragtoplvr

    ragtoplvr Long timer

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    There are unlucky folks that have even punctured the oil radiator on the oilhead bikes, it is a smaller target and more robust than a radiator. I would recommend guards.
    #9
  10. JimVonBaden

    JimVonBaden "Cool" Aid!

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    Those guards are junk. I had them too. The openings are far too large.
    #10
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  11. Zone1Fire

    Zone1Fire Adventurer

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    Which ones are they
    #11
  12. JimVonBaden

    JimVonBaden "Cool" Aid!

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    Touratech, or TT knock-offs.
    #12
  13. miker325

    miker325 Been here awhile

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    It's not just putting a hole in the radiators that moved me to install a set of guards, but damaging and folding over the fins if something hit them, even if it didn't result in an actual leak. Getting the fins straightened back out to allow air flow again without inadvertantly causing more damage to the actual coils is a PITA and not something I wanted to have to do.

    While nothing to do with the radiators, I did have a bird strike at speed this past summer on Hwy 50 out in the middle of nowhere Nevada. Hit my headlight... actually my AltRider headlight guard... and sprayed feathers and blood all over the damn place. If it had been a milisecond earlier or later and been just a few inches lower when it hit, I would have been glad I had the Cox Racing rediator guards on as well!
    #13
  14. TUCKERS

    TUCKERS the famous james

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    It's amazing that motorcycles don't have radiator grilles like cars do. What's expected? Car radiator is vunerable and motorcycles aren't?
    #14
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  15. River-Runner

    River-Runner Been here awhile

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    OK, off to farkle land I go with my visa card......
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  16. ragtoplvr

    ragtoplvr Long timer

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    Guards have a tradeoff. Smaller holes protect better and restrict the air more.

    Rod
    #16
  17. JimVonBaden

    JimVonBaden "Cool" Aid!

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    Not if properly designed. The BMW guards are smaller holes, but do not restrict airflow significantly.
    #17
  18. AdamChandler

    AdamChandler n00b

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    Playing devils' advocate here on the airflow thing, people are reporting that their engine temps are running hotter w/ guards installed (not all, just ones like TT/AltRider). Now, I'm not concerned because I live in a cooler climate. It's below 70F for 90% of my riding. But is the radiator fan a fixed RPM? I assume the ECU treats it like a CPU fan...controlling RPM depending on the thermal temps it's reading. Is that not the case? If it's one speed and you're sitting still then absolutely the germans did calculations set on a specific air flow and if the air flow is reduced and fan is fixed, then overheating would be an issue.

    I don't idle my bike or sit in traffic, just thinking about big picture for others. I wouldn't mind installing a 2nd radiator fan on the left side of the bike if there's room or possibly increasing the RPM of the OEM fan on the right side. My bike only has one fan for 2 radiators.
    #18
  19. JimVonBaden

    JimVonBaden "Cool" Aid!

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    As far as I can tell the radiator fan is a fixed speed fan. Just on and off with the temperature switch.
    #19
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  20. AdamChandler

    AdamChandler n00b

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    Jim, having had these bikes stripped down a few times, what are your thoughts on splitting the power going to the single fan and wiring up one on the other side as well? Fitment, ease?
    #20