View Poll Results: Which bike did you break a subframe/subframe related item on?
Multiple Choice Poll. Voters: 103. You may not vote on this poll
Who has broken a subframe, and what bike?
Thread Starter
Registered User
Joined: Jun 2005
Posts: 46
From: Houston, Tx
Who has broken a subframe, and what bike?
I am just looking for some general info... Let me know what year, engine size, if the subframe was braced/reinforced, and what you were doing (obviously scraping will come in high...).
Nate
Nate
Regular StuntLifer
Joined: Aug 2004
Posts: 653
From: Tampa, Florida
Re: Who has broken a subframe, and what bike?
bent subframe.... bent it in a weird way.. was hauling my back pack (military) an the strap cought the tire.. an bent the subframe down... was able to bend it back up but... its still all jacked
Registered User
Joined: Jul 2005
Posts: 2,521
From: louisville, Ky.
Re: Who has broken a subframe, and what bike?
98 CBR F3....put it on the bar, and it bent like wet spaghetti (causing me to gas it, and flip the bike).... the subframe is made to the frame on this model, so im going to weld a bar from the frame below the bottom subframe bar, and run it back all the way to the tail, and box the tail to around 3", and make a ROUND 12 bar (flat 12 bars are USELESS to me, and DANGEROUS) anyone w/ pics of reinforced subframes POST THEM TOO!
Thread Starter
Registered User
Joined: Jun 2005
Posts: 46
From: Houston, Tx
Re: Who has broken a subframe, and what bike?
well, I built some reinforcement for an f4i, made from 1/4" by 1 1/2" steel. The stuff was so hard I had to use an oxy/acet torch to soften it for bending. I have them on the bike now, but I can try to get some pics or something.
The subframe is so stiff now it's amazing. The way I have them built it puts the stress on the bars and off the actual subframe mounting points. I don't know if the subframe will still bend with these, or just break the reinforcements. Hopefully the latter if anything. I have heard the gixxers have a big problem with the mounting tab breaking off the frame, this design would probably take care of that. IDK, I need someone to lend me one so I can fabricate up some brackets and find out how well it would work.
Any volunteers?
Nate
The subframe is so stiff now it's amazing. The way I have them built it puts the stress on the bars and off the actual subframe mounting points. I don't know if the subframe will still bend with these, or just break the reinforcements. Hopefully the latter if anything. I have heard the gixxers have a big problem with the mounting tab breaking off the frame, this design would probably take care of that. IDK, I need someone to lend me one so I can fabricate up some brackets and find out how well it would work.
Any volunteers?
Nate
Registered User
Joined: Jan 2005
Posts: 1,372
From: down under
Re: Who has broken a subframe, and what bike?
yeh i broke one of the tabs on my gixer. friend made up some 3mm alloy straps that i just bolt on from the rear sets to the pillion peg to strengthend it. that way it has to pull twice as much before it brakes again if it does and less pull on the tab were the subframe bolts up, if that makes any scence. hope this helps. uh yeh. its an 03 600. 
What!
Joined: Feb 2003
Posts: 3,100
From: Newcastle, Australia
Re: Who has broken a subframe, and what bike?
97/RR snapped all four lugs off the sub EZ fix.It had spent abit of time on the bar so not realy a weak point just alot of use and it was also the bike I started 12's on
Registered User
Joined: Jun 2003
Posts: 3,893
From: bridgewater mass
Re: Who has broken a subframe, and what bike?
HERES A PIC I TOOK ABOUT 2 WEEKS AGO, IF YOU NOTICED ITS NOT CRACKED AND I HAVENT DONE ANY STUNTS SINCE THEN. I MARKED WHERE THE CRACK IS, BUT ITS ON BOTH SIDES AND SAME SPOT... ANY ONE ELSE HAVE THIS PROBLEM AND WHAT WOULD IT BE FROM
Registered User
Joined: Oct 2002
Posts: 63
From: Grand Rapids
Re: Who has broken a subframe, and what bike?
LOL, its cracked right there cause thats where gixxers crack. It wont stop cracking either, I just got mine welded for the third time. Check under the neck by the triple also, they like to crack there too.
Registered User
Joined: Jun 2003
Posts: 3,893
From: bridgewater mass
Re: Who has broken a subframe, and what bike?
Originally Posted by Bill McMahon
Is that a B-Mac cage in that picture?
HELL YEAH ITS A BMAC CAGE....
BMAC'S CAGES AND BARS WILL BE ONLINE VERY VERY SOON, SO NO MORE ****ING AROUND SAYING MY CAGE SUCKS IT BREAKS, GO THROUGH THE BEST OF THE BEST BMAC CAGES AND BARS......
Registered User
Joined: Jun 2003
Posts: 3,893
From: bridgewater mass
Re: Who has broken a subframe, and what bike?
Originally Posted by CHIBBY
LOL, its cracked right there cause thats where gixxers crack. It wont stop cracking either, I just got mine welded for the third time. Check under the neck by the triple also, they like to crack there too.
Registered User
Joined: Mar 2003
Posts: 2,371
From: ma
Re: Who has broken a subframe, and what bike?
probly stress crack bro.. slamming down from wheelies can def do it. and i've broken 2 subframe lo, shattered 1, cracked the current one. gotta reinforce it. 954 subframe. broke the first when i was doin a wheelie slipped off the rear brake and slammed on the section hard, cracked this one high sided a circle.
Embrace the Hate
Joined: Jun 2003
Posts: 5,806
From: connecticut
Re: Who has broken a subframe, and what bike?
03 gsxr 1000 3 cracks and a little bit tweaked/twisted to the right..got like that by reving a coaster and the clutch slipped.
sick gsxr..get that piece welded asap... i'll post up pics of my friends gsxr if i can find them...split all the way though good thing he was only going about 10 mph
sick gsxr..get that piece welded asap... i'll post up pics of my friends gsxr if i can find them...split all the way though good thing he was only going about 10 mph
