ninjette.org - View Single Post - Anybody running at 428 chain on their 08+ 250?

nope · April 1st, 2010, 02:13 AM

Nice link for reference:
http://www.rcramer.com/bikes/ex250/428.shtml

If you take the weight for 100 of the 520NZ (non-oring) links and multiply by 4/5 to get their weight for the same effective length as 100 of the 420NZ (non-ring) links you get, 3.52lbs * 4/5 = 2.816lbs. So with a little more math, for the length needed on the ninja, the 420NZ is 1.41lbs lighter than the 520NZ.

Add like 0.2 lbs for lightened front sprocket, and about 1.25 for an alum rear sprocket, you're at 2.86lbs loss.

I know most people could care less, but hey, good free info!

April 1st, 2010, 02:13 AM	#31
nope ninjette.org member Name: Johnathan Location: San Diego Join Date: Jan 2010 Motorcycle(s): 2008 Honda 1000RR, 2008 Ninja 250R Posts: 105	Nice link for reference: http://www.rcramer.com/bikes/ex250/428.shtml If you take the weight for 100 of the 520NZ (non-oring) links and multiply by 4/5 to get their weight for the same effective length as 100 of the 420NZ (non-ring) links you get, 3.52lbs * 4/5 = 2.816lbs. So with a little more math, for the length needed on the ninja, the 420NZ is 1.41lbs lighter than the 520NZ. Add like 0.2 lbs for lightened front sprocket, and about 1.25 for an alum rear sprocket, you're at 2.86lbs loss. I know most people could care less, but hey, good free info!