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05-20-2004, 09:58 AM
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#1 |
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Beastly Adventurer
Joined: Dec 2003
Oddometer: 1,190
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Fiberglass tanks : experiences?
Experiences & adices about fiberglass tanks?
I had only one - a french-made 20 litres that still sit on my XT500 from 1984 ..but I got a lot of critics from mechanics that stands for aluminium ones ... but alu tend to crack...
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Giorgio Betteto "GiorgioXT" - Padova - Tai di Cadore -Italia DRZ400 S '03 XT600 '90 XT550 '82 XT500 '81 - giorgioxt@email.it - www.polverosi.org - EchM#645 "se sei incerto tieni APERTO ! |
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05-20-2004, 03:50 PM
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#2 |
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BMW Uber alles
Joined: Feb 2004
Location: Melbourne, Australia
Oddometer: 142
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There both good.
Metal bends Fiberglass shatters. Metal=good
Metal rusts, fiberglass doesnt. Fiberglass=good Other considerations. wieght, painting. I prefer my aluminium tank but only because it came with the bike and the Touratech 41l is so expensive. If it were free i would be just as happy with a fiberglass tank. 
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stone cold sober |
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05-20-2004, 03:57 PM
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#3 |
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Traveller
Joined: Mar 2002
Location: Sydney, Australia
Oddometer: 6,593
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Err as far as I know Touratech tanks are plastic not fiberglasss.
Fiberglass tanks were popular on the spanish bikes of the '70s. They had a thick 6mm? skin on the outer surfaces that could hit things in a fall. So they were unlikly to shatter. Every material has it weak points, chose your failure method?
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Regards Frank Warner motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S http://www.geocities.com/fwarner_au/ |
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05-20-2004, 04:13 PM
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#4 |
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BMW Uber alles
Joined: Feb 2004
Location: Melbourne, Australia
Oddometer: 142
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shows im not up with the times!
Sorry i was being a little generic in my answer. I'll shut up now
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stone cold sober |
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05-20-2004, 04:46 PM
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#5 |
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Traveller
Joined: Mar 2002
Location: Sydney, Australia
Oddometer: 6,593
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Failure modes for plastic tanks
UV hardening Gouging by rocks Stress fractures .. usuall around the mold points. Failure modes for aluminium tanks stress fractures .. vibration points.. (more subsectable to this than steel..) Gouging by sharp rocks .. or excessive bending by the same rocks Failure modes for steel tanks stress fractures .. vibration points.. Excessive bending by the sharp rocks Rust! Failure modes for fiberglass tanks stress fractures .. vibration points.. Gouging by sharp rocks .. or excessive bending by the same rocks UV hardening They all can fail along the seem lines.. manufacturing defects .. I think those are the main ones. Any others? ---- Basicly any tank can be good .. it depends on the quality of the product.
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Regards Frank Warner motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S http://www.geocities.com/fwarner_au/ |
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