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dakota9498

Pro
Posts: 1181

posted November 22, 2010 01:56 PM

I am 170ish suited and these don't look like they are flexing at all.
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2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain

Newf14

Zone Head
2007 ZX1400
Posts: 563

posted November 22, 2010 03:57 PM

I have All things chrome ones on my bike as well, did all types of rideing on all types of roads and dragracing as well with no issues.

Newf14

eklipse636

Needs a life
ZX-14
Posts: 6046

posted November 22, 2010 04:00 PM

If the pressure on the bolt was coming from the side, I could see it bending. But pushing straight on it... It would take a lot of force to bend that bolt... I still don't think the axle nut was tight.
And yes hardware has got really cheap. The bad thing about higher grade bolts is they don't bend, they break.
____________
Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32

eklipse636

Needs a life
ZX-14
Posts: 6046

posted November 22, 2010 04:05 PM

Extension still straight

The left side bent because the bike flipped and landed on the rear rim, and the pressure from the axle bent it. No cracks visible. Right side perfect straight (I wouldn't use them, just sayin)

So to say extensions are no good, I disagree.
____________
Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32

eklipse636

Needs a life
ZX-14
Posts: 6046

posted November 22, 2010 04:06 PM

Left side

____________
Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32

eklipse636

Needs a life
ZX-14
Posts: 6046

posted November 22, 2010 04:08 PM

Just to show the rest of the pile of scrap

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Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32

smokinZX14

Needs a life
Posts: 10197

posted November 22, 2010 04:25 PM

Tommy bent Jesses adjuster bolt into an S shape and blew the chain right off the bike .. Cheap ass bolts ...
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Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95

madnessracing

Pro
Vmax and Busa Beater
Posts: 1140

posted November 22, 2010 04:26 PM

I had the same cheap ass bolt on my extensions and I bent them with my 155lbs body Now I have grade 8s and damn those grade 8 bolts wont bent for shit! It was my mistake for putting stupid home depot bolts!
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Team Madness Racing

1badzx12r

Needs a life
Posts: 8321

posted November 22, 2010 04:45 PM

i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..
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http://www.youtube.com/watch?v=S06nIz4scvI

LAB3

Needs a job
Posts: 2977

posted November 22, 2010 05:18 PM

quote:
i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..

http://sidewindersprockets.com/custom.html Buy Bigger and better sprockets and Chains.

lay off the Jelly Donuts...... j/k :-)

Do check out the tool steel sprockets. There use to be a Top Fuel racer that made you look small that was Really Fast.

wrongway

Pro
Posts: 1078

posted November 22, 2010 05:40 PM

quote:
i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..

does the chain tighten up when the bike squats ?

indynic

Expert Class
Lil Show, Lil Go
Posts: 258

posted November 22, 2010 06:11 PM

quote:
i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..

Can I see a pic of those bent Grade 8 bolts? Grade 8 bolts should not bend. They should break. They are too brittle to bend much. Also, did the bolt have 8 on the head? If so, it was most likely a Class 8.8 bolt which is equivalent to a Grade 5.

Shane661

Needs a life
Posts: 11494

posted November 22, 2010 06:15 PM

Edited By: Shane661 on 23 Nov 2010 02:17

Are they metric? If so, usually Class 12.9 is the deal if you want strength that exceeds what you need in this app.

PC HOTROD

Novice Class
Posts: 45

posted November 22, 2010 06:21 PM

It's ironic that this post showed up... I just noticed that the sprocket side adjustment bolt on Erica's SWB ZX14 was becoming distorted after a few low 9 second passes. And yes we do run will the axle nut not torqued to the proper spec.

01smokes

Needs a job
Posts: 2243

posted November 22, 2010 08:39 PM

held up fine for me at 330hp and me at 200lbs AFTER i replaced the cheap bolt that came with them...

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1badzx12r

Needs a life
Posts: 8321

posted November 22, 2010 09:10 PM

Edited By: 1badzx12r on 23 Nov 2010 05:18

quote:
quote:
i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..

Can I see a pic of those bent Grade 8 bolts? Grade 8 bolts should not bend. They should break. They are too brittle to bend much. Also, did the bolt have 8 on the head? If so, it was most likely a Class 8.8 bolt which is equivalent to a Grade 5.

the grade 8 bolts don't bend up like the 1 's in the pic from roy .. but they bend enough to let the sliding adjuster by and throw the chain .. but as long as i keep my axle really tight its not a problem
____________
http://www.youtube.com/watch?v=S06nIz4scvI

Shane661

Needs a life
Posts: 11494

posted November 22, 2010 09:13 PM

1Bad, I have to call bullshit on you. If you have the axle tightened properly, I really doubt what you are saying. Bigger guys than you put these things to the test..

Maybe get a new torque wrench, and clean everything up??

1badzx12r

Needs a life
Posts: 8321

posted November 22, 2010 09:16 PM

quote:
quote:
i guess grade 8 bolts are junk too. because i bent those too. .. not only that but i have my chain tight .and on launches my chain jumps teeth on sprocket ..i can hear and feel it ..others watching hear it and in pics i can see loose chain when parked it tight . .. this is a new chain and sprockets with a chrome moly arm and under braced .. not like its worn or anything .... bottom line fatboys and dragracing don't mix ... ..

moving 835lbs @280hp with 1.48 60ft is rough on my gearing and arm ..if i leave at 1.55 its ok and don't skip . i'm a bracket racer anyways and found bikes limits and use what i can ..

does the chain tighten up when the bike squats ?

very little
my bike doen't squat but 1.5 inch .
that with me bouncing on the seat with all i got ..
____________
http://www.youtube.com/watch?v=S06nIz4scvI

1badzx12r

Needs a life
Posts: 8321

posted November 22, 2010 09:24 PM

Edited By: 1badzx12r on 23 Nov 2010 05:46

quote:
1Bad, I have to call bullshit on you. If you have the axle tightened properly, I really doubt what you are saying. Bigger guys than you put these things to the test..

Maybe get a new torque wrench, and clean everything up??

what i been telling you .. I KEEP MY AXLE TIGHT NOW . then its not a problem .. but i don't care what bolts you put in it. they will bend if that axle nut is not tight .. . but go find out for yourself . your good at calling bullshit on things you have no clue at .( i'd) rip the fukking adjustment bolts right out of your aluminum adjusters on the sprocket side without a tight axle .

ps theres members on this forum that watch me bend a dayum stock swingarm launching with extensions .. hint reason for chrome moly underbraced arm with the 3 hole solid adjusters .. i'm shock that the zx14 output shaft hasn't been ripout by me yet .. like the busa guys do ..