March 22nd, 2013, 11:15 AM | #1 |
ninjette.org member
Name: Chris
Location: Tacoma, WA
Join Date: Sep 2012 Motorcycle(s): 2009 Ninja 250/2013 Ninja 300 Posts: 52
|
repairing bent rearset mount
I had a bit of a low speed high side on my bike last evening, actually it was on my Ninja 300, but I am sure you 250R guys have ran into the same issue.
How do I go about fixing this, the mounting point in the frame is bent, do I just beat on the rearset until the mount bends back into place? What do I do in this case? A new frame alone is $1500.. I would rather insurance NOT total out my bike with all the work, money and time I have into it.. This area is about 90% of the damage to the bike, as it landed on top of me, and did not slide.. (obviously I will need new rearsets but, I am talking about where the rearset mounts to the bike is bent as well.) |
|
March 22nd, 2013, 11:19 AM | #2 |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
|
Howdy! Should I move this into the 300 tech area? (generally the most helpful folks here see new posts wherever they are). I wonder if you should update your profile as well to show the new 300.
__________________________________________________
Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
|
March 22nd, 2013, 11:22 AM | #3 |
ninjette.org member
Name: Chris
Location: Tacoma, WA
Join Date: Sep 2012 Motorcycle(s): 2009 Ninja 250/2013 Ninja 300 Posts: 52
|
You can move it you would like, I didnt post it there only because I figure the 250R guys would have a better idea as they have been around longer.. The mounting points are exactly the same.
|
|
March 22nd, 2013, 11:47 AM | #4 |
ninjette.org sage
Name: Matt
Location: San Diego, CA
Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748
|
Is the frame made out of steel? I would say heat it up with a torch and use vise grips and bend it back.
__________________________________________________
*CVMA #312*SoCal Trackdays*BigHeadz Racing*Motion Pro*Factory Effex*Leatt Brace* Racetech *Bell * Woodcraft CFM*Vortex*Hotbodies*Surface Sun Systems*Braking*LiveWire Energy*Freegun Underwear |
|
March 22nd, 2013, 11:50 AM | #5 |
ninjette.org member
Name: Chris
Location: Tacoma, WA
Join Date: Sep 2012 Motorcycle(s): 2009 Ninja 250/2013 Ninja 300 Posts: 52
|
I have one of those small propane bottle torches would that heat it up enough?
|
|
March 22nd, 2013, 11:54 AM | #6 | |
ninjette.org sage
Name: Matt
Location: San Diego, CA
Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748
|
Quote:
Pic of torch? I would think its good enough. IIRC the NInja 250 and 300 frame is steel, so you can bend it back easily. Using heat makes it a lot easier to bend back. If the frame is aluminum, I would take it to a shop to have them bend it back.
__________________________________________________
*CVMA #312*SoCal Trackdays*BigHeadz Racing*Motion Pro*Factory Effex*Leatt Brace* Racetech *Bell * Woodcraft CFM*Vortex*Hotbodies*Surface Sun Systems*Braking*LiveWire Energy*Freegun Underwear |
|
|
March 22nd, 2013, 11:58 AM | #7 |
Gear crash test dummy
Name: Max
Location: South Bay (So. Cal)
Join Date: May 2011 Motorcycle(s): 2010 Ninja 250 race bike, 2014 ZX-636r Posts: A lot.
|
At the track with our 250s we just slide a pipe over the foot peg and muscle that f*cker back to where it should be. Don't even use heat.
__________________________________________________
CVMA #531 |
|
March 22nd, 2013, 11:58 AM | #8 | |
ninjette.org member
Name: Chris
Location: Tacoma, WA
Join Date: Sep 2012 Motorcycle(s): 2009 Ninja 250/2013 Ninja 300 Posts: 52
|
Its one of these..
According to Kawi specs the frame is: Quote:
|
|
|
March 22nd, 2013, 12:16 PM | #9 |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
|
If you bent it without using heat, you can reshape it back using only force.
Do not use the rearset as a lever; rather, remove it first. Then use a friend and a big crescent wrench clamped over the flat piece to which the rearset is normally bolted. The area around the holes for the bolt is solid, farther from those it is hollow; you want the wrench applying force over the holes. With your friend holding the bike, bend the part back to original shape. You may need to remove the swingarm to clear the wrench for reaching all the way in. The attached schematic shows how to straighten the support for the passenger rearset, but the same principle applies to your case.
__________________________________________________
Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
|
April 8th, 2013, 06:29 PM | #10 |
ninjette.org member
Name: Rick
Location: Ohio
Join Date: Jun 2012 Motorcycle(s): 250r Posts: 17
|
Has anyone tried bending this piece back like the above post describes? I recently low sided and bent the same part, just not as bad.
Are you suppose to put the wrench in between the two mounting holes? Once you put the wrench on that piece to bend it, is just using your hands enough force to bend it back or do you need to use a hammer or something to tap the wrench with?
__________________________________________________
08 250R - White |
|
April 14th, 2013, 08:12 PM | #11 |
Intrepid Adventurer
Name: Josh
Location: Rochester/Buffalo NY
Join Date: Jan 2012 Motorcycle(s): 2004 GSXR 750 , 71 cb350streettracker, 07 Polaris Predator 500 Posts: A lot.
|
Use a large wrench and maybe a pipe for leverage. Don't heat it cause that can mess up the temper of the steel. I would try to position the wrench where the holes are so you return it to shape from the attachment points
|
|
April 15th, 2013, 06:27 PM | #12 | |
ninjette.org member
Name: Chris
Location: Texas
Join Date: Dec 2012 Motorcycle(s): Ninja 300 Posts: 18
|
Quote:
|
|
|
April 17th, 2013, 08:24 PM | #13 |
CPT Falcon
Name: J.Emmett Turner
Location: Newnan, GA
Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.
|
I detected that mine were ever so slightly bent when I installed rearset adjusters and a rear hugger.
To solve it, I removed the footrest bracket and inserted extremely short bolts into the holes. I then took two of the largest adjustable wrenches I had and clamped them over the bolts length-wise (top of head to base of shaft). I levered them out using my own weight with a few small tugs instead of trying to brute-force bend it and it seemed to do the trick without putting too much force into anything other than what had already received force. |
|
April 18th, 2013, 01:19 PM | #14 |
Lays er down
Name: Michael
Location: Maryland
Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.
|
|
|
April 18th, 2013, 03:03 PM | #15 |
CPT Falcon
Name: J.Emmett Turner
Location: Newnan, GA
Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.
|
Durr hurr hurr.
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Frame Welding -- RearSet Bolt Mount Point (08+ Ninja 250) | abhijitz | 2008 - 2012 Ninja 250R Tech Talk | 34 | October 13th, 2022 08:51 AM |
Bent Engine mount bolt | oompa | General Motorcycling Discussion | 2 | April 15th, 2015 08:27 PM |
Lowside- bent clutch thrust rod and possibly bent shift fork? | Klondike1020 | General Motorcycling Discussion | 3 | April 1st, 2014 02:29 AM |
how to fix bent footpeg frame mount? | Zyconic17 | 2008 - 2012 Ninja 250R Tech Talk | 15 | July 25th, 2012 10:12 PM |
|
|