May 21st, 2017, 10:40 AM | #1 |
ninjette.org member
Name: Kyle
Location: Raleigh, NC
Join Date: Jan 2017 Motorcycle(s): 2008 Triumph Speed Triple (Blazing Orange); 2010 Nina 250r (Race Project) Posts: 97
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Newgen 250, 204 ex300 fork swap?
Hello all, I have a fun for you!
Working on my SO's track bike. Just sold my speedy for a 300, so she is getting the 250! Here is my predicament. The forks on the 250 are dialed in (to a point. Just have the right fork springs, oil level, weight and preload). The 300 is stock, perfect for her size. Can I just take the forks off each and swap? Worst case scenario I imagine the front where would have to go with, but if I could just swap the forks that would be ideal. |
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May 21st, 2017, 11:57 AM | #2 |
Motorbike Obsessed
Name: Me
Location: SoCal
Join Date: May 2015 Motorcycle(s): 2004 Kawasaki EX250, 2004 Yamaha FZ1, 2006 Honda CRF 450 Flat Track Race Bike Posts: 133
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I believe you can, however you have to look at all of the other factors like handle bar clearance etc. since you have to swap the whole thing over. Everything from the triple trees on down.
Do a search for pregen 17" wheel conversions. Many people talk about swapping new model forks onto the older model (pre '08) bikes to take advantage of the modern tires available in 17" sizes. You are essentially doing the opposite so many of the issues will be covered.
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May 21st, 2017, 03:42 PM | #3 |
ninjette.org member
Name: Kyle
Location: Raleigh, NC
Join Date: Jan 2017 Motorcycle(s): 2008 Triumph Speed Triple (Blazing Orange); 2010 Nina 250r (Race Project) Posts: 97
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I actually just said to heck with it and started. Here is what I discovered:
Forks swap cleanly. Calipers bolt cleanly. If this is a 300-to-250, you will have to find a way to hold the brake line and speedo cable away from the tire. The fender-stay and gender have to go with the forks, unfortunately. |
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May 22nd, 2017, 06:40 PM | #4 | |
ninjette.org certified postwhore
Name: Bill
Location: Port Huron, Michigan
Join Date: Mar 2017 Motorcycle(s): 2007 Kawasaki 250 Ninja, 1982 Honda Ascot FT500 Posts: A lot.
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Quote:
Bill |
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May 22nd, 2017, 06:42 PM | #5 | |
ninjette.org member
Name: Kyle
Location: Raleigh, NC
Join Date: Jan 2017 Motorcycle(s): 2008 Triumph Speed Triple (Blazing Orange); 2010 Nina 250r (Race Project) Posts: 97
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Quote:
Certainly can use the guides! If you take the 250 forks to the 300, your set. It's the 300 forks (with no guides on the fender) that leave you in a pickle. I need to look more into my scraps to see if there are parts to put o n the 250 to keep it sorted.! |
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May 22nd, 2017, 10:16 PM | #6 | |
ninjette.org certified postwhore
Name: Bill
Location: Port Huron, Michigan
Join Date: Mar 2017 Motorcycle(s): 2007 Kawasaki 250 Ninja, 1982 Honda Ascot FT500 Posts: A lot.
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Quote:
Bill |
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May 22nd, 2017, 10:19 PM | #7 |
ninjette.org member
Name: Kyle
Location: Raleigh, NC
Join Date: Jan 2017 Motorcycle(s): 2008 Triumph Speed Triple (Blazing Orange); 2010 Nina 250r (Race Project) Posts: 97
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May 23rd, 2017, 10:25 AM | #8 |
ninjette.org sage
Name: bruce
Location: northern illinois
Join Date: Jan 2012 Motorcycle(s): Race bikes:08 Ninja 250,11 R6,16 ZX6,SV650.3 HD-1947,2-2003,2010. 1946 Indian and a lot of dirt bikes.2 Posts: 999
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the 300 forks won't have the boss on the left fork leg to prevent the speedometer drive from spinning around. If you have the spacer from the 300 you can substitute it for the speedo drive. If your 300 is an ABS model the speed sensor will not mount to the 250 fork leg below the brake caliper.
Last futzed with by bruce71198; May 23rd, 2017 at 10:27 AM. Reason: more info |
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