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Plastic engine guards

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CB500 Club forum :: Forum :: General

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Post by badseeds Sun 22 Jan 2012, 10:43 am

I just stuck some of these on my bike:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=140674849888

Anybody used 'em? They're much cheaper than crash bars and attach with a generous blob of silicone sealant.
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Post by Trollface Sun 22 Jan 2012, 1:04 pm

I`ve had these fitted for the past few months. They have to be fixed on with heat resistant silicone mind ---- the ordinary stuff softens with the engine heat and the protectors drop off.
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Post by badseeds Sun 22 Jan 2012, 3:47 pm

Trollface wrote:I`ve had these fitted for the past few months. They have to be fixed on with heat resistant silicone mind ---- the ordinary stuff softens with the engine heat and the protectors drop off.

Thanks for the heads-up. I just did 110 miles and I noticed they felt a bit soft still. What brand silicone did you use?
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Post by Trollface Sun 22 Jan 2012, 4:00 pm

Picked it up on ebay. It`s called MAG 999 750degree Hi-temp RTV Silicone Gasket Maker. Comes in 85gm. tube. Works well. Only cost a few quid.
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Post by James_chivers Sun 22 Jan 2012, 5:16 pm

I'm not sure they are going to protect your bike as well as crush bungs but are good for protecting a particular engine case or covering a scruffy one (like mine)
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Post by kwackboy Sun 22 Jan 2012, 9:05 pm

Hello,

I have had these fitted to my CB for the past 6 months or so and i have used ordinary silicone which has held very well.

The natural cup fitment will keep them on if your bike hits the deck and alot of the CB500 cup racers use them.

From what i have heard alot of racers are steering away from crash mushrooms because of the damage they cause when a bike slides and catches the rumble strip or kerb (suppose the same could happen on the road), They catch and flip the bike causing more damage but with engine case covers the bike just slides and less damage is caused.
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Post by badseeds Sun 22 Jan 2012, 10:08 pm

kwackboy wrote:Hello,

I have had these fitted to my CB for the past 6 months or so and i have used ordinary silicone which has held very well.

The natural cup fitment will keep them on if your bike hits the deck and alot of the CB500 cup racers use them.

From what i have heard alot of racers are steering away from crash mushrooms because of the damage they cause when a bike slides and catches the rumble strip or kerb (suppose the same could happen on the road), They catch and flip the bike causing more damage but with engine case covers the bike just slides and less damage is caused.

Very informative. Thank you!
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Post by badseeds Mon 23 Jan 2012, 7:10 pm

spitonyourgrave22 wrote: In a heavy crash though would the covers dissipate the energy enough across the entire bike for it not to crack the engine case?

What I'm getting at here is; would you rather bend your frame or crack a crankcase?

I think in a heavy crash you wouldn't give a toss about your frame or crankcases!
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Post by kwackboy Tue 24 Jan 2012, 6:27 pm

What I'm getting at here is; would you rather bend your frame or crack a crankcase?

Bending your frame is a write off.... cracking crank/engine cases isnt, although a bit of a pain in the ass... but i know what id rather have.

CB500 engine cases are rather strong and can take a decent hit or two without protection but adding to them with covers etc will only improve them. Ive seen racers weld aluminium Blocks to the cases they are that strong...

As for other bikes like blades/R1's and ninja's .... thats a whole debate...lol...
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Post by FuelDrinker Sat 28 Jan 2012, 7:28 pm

Do you have a picture while mounted on your bike Smile?
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Post by Trollface Sat 28 Jan 2012, 8:04 pm

There are pictures of these mounted on my bike in my gallery.
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Post by FuelDrinker Sun 29 Jan 2012, 10:48 am

Trollface wrote:There are pictures of these mounted on my bike in my gallery.

Looks nice Wink, thanks.
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Post by badseeds Sun 29 Jan 2012, 1:10 pm

FuelDrinker wrote:Do you have a picture while mounted on your bike Smile?
Plastic engine guards 29012012229
Plastic engine guards 29012012228
Plastic engine guards ?action=view&current=29012012227
Plastic engine guards 29012012226
Plastic engine guards 29012012225
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Post by kwackboy Tue 31 Jan 2012, 10:15 pm

They do look nice.... I have my engine cases powdercoated Black and you can hardly notice them until you look close.....
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Post by Watchman Thu 21 Jun 2012, 9:25 pm

Hi,

Just bought some of these covers myself.

Where abouts do you apply the silicone?
Around the edge or just a blob in the center?

Thanks,
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Post by Trollface Fri 22 Jun 2012, 3:22 pm

I just put a blob of heatproof silicone at 10 o`clock, 2 o`clock, 4 o`clock and 8 o`clock. They`ve stayed put and caused no bother. Haven`t tested their effectiveness as sliders fortunately!!
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Post by Watchman Sun 24 Jun 2012, 6:14 pm

Are they easy to remove if you have to replace the clutch plates or anything like that?
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Post by Trollface Sun 24 Jun 2012, 6:19 pm

Yes, they can still be pulled off in one piece and the silicone cleaned off casing and plastic slider.
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Post by Watchman Wed 04 Jul 2012, 10:30 pm

Well the clutch side cover decided to fall off at 70 mph along the dual carriageway. Mad

All the silicone was stuck to the engine even though I applied it to the inside of the cover.

What have I done wrong?
Everyone else seems to have them on fine.
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Post by openrob Wed 27 Mar 2013, 11:38 am

Does anyone have a link from where to buy these?
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Post by eternally_troubled Wed 27 Mar 2013, 12:12 pm

You can get them on ebay...
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Post by openrob Thu 28 Mar 2013, 4:48 pm

I managed to find a pair on ebay: 140929665155

But I have seen before ones that cover most of the engine case.

Anyone aware of these?
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Post by ashcroc Thu 28 Mar 2013, 8:00 pm

Watchman wrote:Well the clutch side cover decided to fall off at 70 mph along the dual carriageway. Mad

All the silicone was stuck to the engine even though I applied it to the inside of the cover.

What have I done wrong?
Everyone else seems to have them on fine.
Sounds like there's a residue of oil/grease/powder from the mould on the inside of the cover. A good clean of the surfaces with de-greaser/brake cleaner before fitting should help adhesion.
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Post by glen.wilson1@gmx.com Sat 30 Mar 2013, 10:10 pm

i use these too, i talked to the supplier on ebay and he said to ruff them up with a bit of sandpaper on the inside first to help stick. you will all laugh but i used double sided tape to keep them on Laughing been on since last september though and ive done a few good runs since then Laughing Laughing
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Post by Hario Sun 31 Mar 2013, 11:15 am

Has anyone had these successfully save their cases in a spill?


Also what are they made of exactly, fiberglass?
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