April 10th, 2013, 10:11 AM | #1 |
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Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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Are my forks bent?
I was changing out my front tire last night and notice the front fender isn't straight.
At closer examination, I realize the front brace is rather tweaked, so I bolted up a spare straight front brace. When the axle is inserted with the new front brace in and no wheel, it does not line up with the axle holes. The axle hits the second fork about 3/8 inch off of the axle hole. So I was thinking maybe the brace isn't on correctly. I remove all bolts from the right hand side of brace and mount the wheel. The right side brace holes are off about 3/8 of an inch for the fork holes. I wish I took pics last night. My question is: If the front wheel is off, should the axle slide through the fork holes with ease?
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April 10th, 2013, 10:26 AM | #2 |
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Name: Jason
Location: Norfolk, VA
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maybe they're just twisted
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April 10th, 2013, 10:37 AM | #3 |
wat
Name: wat
Location: tustin/long beach
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i would exmine the bottom triple. they could just be twisted. you could measure the distance between them in the top triple and the distance between the axle mounts maybe? if you take the springs out and move the lower up the stanchion, does it move straight or bend? if you bottom it out with the spring out does it rub on the inside? its not very difficult to have straight forks but a bent lower triple.
might be a good idea to fully disassemble the forks and check the stanchions with a straight edge (or roll them on a true surface)
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April 10th, 2013, 10:46 AM | #4 | |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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Quote:
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April 10th, 2013, 11:16 AM | #5 |
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.
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Sounds like it might be a good idea to buy a spare set of forks for no reason....
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April 10th, 2013, 11:38 AM | #6 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
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"you know 250ss is super stock right?" --"yeah i know!" --"you know those upside down ohlins forks aren't stock right?" --"they're stock... stock on a gsxr."
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April 10th, 2013, 11:48 AM | #7 |
ninjette.org sage
Name: Matt
Location: San Diego, CA
Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748
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A crude way to find out if they are bent is to take the forks off and put them on a wheel balancer and spin them and see how much they wobble. Sean at Trackoholics can do that for you relatively quickly.
If you want to know how bent, put a dial indicator on it. As Alex mentioned...maybe check the distance from the center of the axle hole to the bottom of the bottom triple. Check to see if the distance between the two is the same for both forks.
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April 10th, 2013, 12:16 PM | #8 |
Daily Ninjette rider
Name: Hernan
Location: Florida
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Off in what direction?
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April 10th, 2013, 02:18 PM | #9 |
CVMA #74 WSMC #750
Name: Nemesis
Location: On the track
Join Date: Oct 2009 Motorcycle(s): All of them Posts: A lot.
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So what you're saying is you got robbed by Dr. John when you paid him $400 to straighten out your bike? LOL
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April 10th, 2013, 02:24 PM | #10 | |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
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Quote:
But luckily, I just happen to buy a complete 250 front end for $100 last weekend.
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April 10th, 2013, 02:27 PM | #11 |
CVMA #74 WSMC #750
Name: Nemesis
Location: On the track
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Dannnnggg...your Asian skills (finding low prices) are quite uncanny.
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April 10th, 2013, 02:27 PM | #12 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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April 10th, 2013, 02:28 PM | #13 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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Yeah, I figured I could sell it to you for $150
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April 10th, 2013, 02:29 PM | #14 |
CVMA #74 WSMC #750
Name: Nemesis
Location: On the track
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April 11th, 2013, 12:03 AM | #15 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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bent
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April 11th, 2013, 12:08 AM | #16 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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April 16th, 2013, 12:07 PM | #17 |
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.
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Time to go to Mackie Welding in Sierra Madre. That's who repaired one of the rims I sold you ($75).
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April 16th, 2013, 12:30 PM | #18 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
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just hit it with a hammer!
seriously though any decent machinist can straighten that in a few minutes with a press and vblocks. they will take a few passes, checking it between each press. if it was kinked its another story... just throw it away if it is kinked.
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April 16th, 2013, 01:06 PM | #19 |
ninjette.org certified postwhore
Name: dino
Location: Oceanside, Ca
Join Date: Nov 2010 Motorcycle(s): '09 250 Street, '09 250 Race, '13 300 Race Posts: A lot.
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Nah, I swapped them completely out cause I picked up a set of front forks the weekend before
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April 16th, 2013, 07:28 PM | #20 |
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.
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