Anybody scared spool bolts breaking?

kingdomstyle

Joined: 02/05/14

Posts: 5

Anybody scared spool bolts breaking?
02/25/14 10:24 PM

The last zx-14 I owned had a couple bolts instead of spools ....farther back on the swing arm and they where a lot bigger than 10mm.I am thinking of using those again ....10mm bolt just seem shaky to hold up this big of bike ....any thoughts?

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Neilp

Location:

Brisbane, Australia

Joined: 01/02/12

Posts: 350

RE: Anybody scared spool bolts breaking?
02/26/14 12:23 AM

Have mine on since new & no problems.

Neil

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/26/14 2:45 AM

i would not use just a bolt. Because of the rounded shape of the swingarm tubing, the ZX-14 requires a longer bolt to extend the spool out past the side of the swingarm. If you go with the bolts only, you still need the longer bolt but have no spool to support the bolt. The spool offsets the leverage of the bolt.

You probably would be okay with just bolts but why risk it? Get a $20 set of spools and just remove them after you take the bike off the stand if you don't like the look of spools.

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/26/14 2:46 AM

or get a swing arm pivot stand.

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Cornelius

Location:

University of Okoboji

Joined: 10/29/13

Posts: 535

RE: Anybody scared spool bolts breaking?p
02/26/14 3:47 PM

If you break a 10mm bolt you are doing something wrong! I spend a lot of time working on heavy equipment and tractors, you'd be surprised at the stress a 10mm bolt can hold. The cab on your car is probably held to the frame with just a few 10mm bolts.

* Last updated by: Cornelius on 3/8/2014 @ 4:45 PM *

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Grn14

Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Anybody scared spool bolts breaking?
02/26/14 8:58 PM

I'd be worried IF the bolts were rusting...

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/27/14 3:01 AM

aluminum bolts won't rust.

NO

don't

* Last updated by: Rook on 2/27/2014 @ 3:01 AM *

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hagrid

Location: pittsburgh

Joined: 02/16/12

Posts: 2210

RE: Anybody scared spool bolts breaking?
02/27/14 3:05 PM

Socket-head cap screws are predominantly grade 8.

You can hang your scooter off of one.

Exception is made for the stainless variants: theyre not as strong (tensile) as steel.

Yoshis!! GO NINJEE!!!

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/27/14 7:19 PM

oh FCOL--just buy a couplwe spools made to fit a ZX-14 swingarm so you don't scratch your paint..

http://www.amazon.com/KAWASAKI-NINJA-SWINGARM-SPOOLS-SLIDERS/dp/B003V5PUK6

If you buy yourself some good quality bolts it will cost you $5. Just get some spools.

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Anrkizm95

Location: amarillo tx

Joined: 04/28/13

Posts: 46

RE: Anybody scared spool bolts breaking?
03/08/14 4:30 PM

proof load for a m10 grade 8.8 bolt is 3,370kg.i wouldnt worry about them holding up the light end of a 254kg bike.

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/20/20 6:01 PM

aluminum bolts won't rust.
NO
don't

OK well what about aluminum spool bolts for the 14? Pro-Bolt makes spools for the ZX14 and they are solid aluminum including the M10 threaded portion. M10 aluminum bolts in Vertical Horizon spools? Safe or not?

* Last updated by: Rook on 2/20/2020 @ 6:01 PM *

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cruderudy

Location: AMR

Joined: 08/15/12

Posts: 1963

RE: Anybody scared spool bolts breaking?
02/21/20 8:16 AM

Dont know the bolt size is it M10-M12??

M10 6061 AL static shear strength is 1078 lbs and an M12 is 1560 lbs, so if 50% of the bike weight (assume 300 lbs to be conservative) is on 2 M10 spool bolts its factory of safety is very good at 3.6, shear capability is 1078 lbs.

M12 is more capable.

This is where I would use Ti screws - about the same as steel then. But the AL is safe to use in a static load, keep in mind lifting the bike is not static but I think the dynamic load condition would still be safe.

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Rook

Joined: 03/28/09

Posts: 20583

RE: Anybody scared spool bolts breaking?
02/21/20 9:55 AM

Dont know the bolt size is it M10-M12??

According to the OP, it is 10mm for the gen1.

This is where I would use Ti screws

Thinking it over a little, I might go with Ti. I think the 10 mm aluminums would handle it but the bike sits up on those spool for a long, long time (like all winter). The lifting forks on the stand probably engage an inch out from the frame so leverage is another factor to consider. An inch of leverage is more stress on the bolts than would be the case if the lifting forks could grab right against the frame.

This Ti hardware is killing me! Hate to spend $30 on two bolts.

Thanks, rude.

* Last updated by: Rook on 2/21/2020 @ 9:57 AM *

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