Race Tech Shock Spring

Question 1

I am 270 on a 2019 yz450 what spring rate should I run

By Anon.

By **Andy** · Answer

The closest rate spring that is available for that bike with a rider of your weight would be the 6.6 kg/mm.

Question 2

2021 yz250fx rear spring 230 lbs rider what spring do I want ?

By Bob

By **Andy** · Answer

For that bike with a rider of your weight, Race Tech suggests the 6.3 kg/mm rate spring.

Question 3

I'm 5'5 115lbs with gear on a 2017 TC250 and want a softer spring what do I need

By CJN

By **Andy** · Answer

Race Tech recommends the 3.8 kg/mm rate spring for your weight on that bike.

Question 4

I am 200lb on a 2003 rm125 what spring rate should I get ??

By Eric S.

By **Andy** · Answer

Based on what Race Techs spring calculator shows, you would want to go with a 5.4 kg/mm rate spring.

Question 5

2020 yz125 180lbs setting up for loretta lynns what rear spring do you recommend

By Booboo

Out doors motocross. Aggressive riding

By **Andy** · Answer

For your weight on that bike, the suggested rate spring is 5.0 kg/mm.

By **Andy** · Answer

For your weight on that bike, the suggested rate spring is 5.0 kg/mm.

Question 6

I am 185 lb on 2023 yz 250f

By Anon.

Novice rider 38 yrs old

By **Andy** · Answer

For your weight on that bike, the 5.4 kg/mm rate spring would be recommended.

Question 7

i have a 2006 yz 85 i am 135 with gear looking to race. what shock spring would you recommend me

By jacob

By **Andy** · Answer

Race Tech recommends the 5.6 kg/mm rate spring for your weight on that bike.

Question 8

I am 5'4 130, 2004 crf 450r. Which spring do i need?

By Hayden

By **Andy** · Answer

Race Tech suggests the 5.0 kg/mm for your weight on that bike.

Question 9

250 lbs on a 2016 crf450r, what spring?

By Anon.

By **Andy** · Answer

Race Tech suggests the 6.6 kg/mm rate spring for your weight on that bike.

Question 10

I am 230 pounds, with a 2013 wr250F.

By Anon.

What spring do I need? Casual rider, not racing. And can I get it here? On parts giant?

By **Andy** · Answer

According to the Race Tech spring chart, they recommend the 5.2 kg/mm rate spring for your weight on that 2013 WR250F.

Question 11

Rear shock spring size for 2020 yz250fx, I'm between 195-205 with gear on.

By Anon.

By **Andy** · Answer

For your weight on that bike, Race Tech recommends the 4.8 kg/mm rate spring.

Question 12

I have 13' yz250f I'm at 200lbs maybe 210lbs with gear what spring should I use?

By Dave

By **Andy** · Answer

Race Tech recommends the 4.8 kg/mm rate spring for your weight on that bike.

Question 13

What size spring I'm 230lbs on a 2020 kx250f

By Anon.

By **Andy** · Answer

You would want to go with the 6.6 kg/mm rate spring for your weight on that 2020 KX250F.

Question 14

What is the spring rate for a 5'9, approximately 180 lbs w/ gear on riding a 07 GSXR 600?

By Anon.

Spirited and aggressive riding, 1-2 track days a year.

By **Andy** · Answer

You would want to go with the 8.9 kg/mm rate spring for that bike and your weight.

Question 15

I have a 2001 fzs1000, my weight is 200lbs and occasionally have a 120 lb passenger.which spring would work best?

By Anon.

By **Andy** · Answer

For your weight on that bike, you would want to go with the 11.6 kg/mm rate spring.

Question 16

What would be the spring on a 02 cr125 for a 130lbs rider?

By Anon.

By **Andy** · Answer

Race Tech suggests using the 4.4 kg/mm spring for your application.

Question 17

What spring rate for a 200 lbs rider on 2008 KX 450F

By Anon.

By **Andy** · Answer

Race Tech shows that for your weight on that bike to be using a 5.8 kg/mm spring.

Question 18

I weight 284 pounds i have a 06 crf250r

By Victor

What spring rate should i have on my rear shock spring

By **Andy** · Answer

Race Tech recommends the 6.6 kg/mm spring for your weight on that bike.

Question 19

Yamaha banshee and my weight is 200lb

By Anon.

By **Andy** · Answer

Race Tech recommends the 7.10 kg/mm spring for your weight on that machine.

Question 20

I weigh 145 lbs on a 2022 kx 450 4 stroke what rear spring do I need

By Anon.

By **Andy** · Answer

According to the Race Tech specs, they suggest the 4.6kg/mm spring for your weight on that bike.

Question 21

I weigh 330lbs and ride a 2009 crf450x what spring rate would be best for me?

By Kyle

2009 crf450x

By **Andy** · Answer

It would be recommended to go with the 6.6 kg/mm rate spring for your weight on that 2009 CRF450X.

Question 22

What spring rate for 200lbs rider onba 02 rm 125 thanks.

By Gkiss

By **Andy** · Answer

It would be recommended to go with the 4.5 kg/mm rate spring for your weight on that 2002 RM125.

Question 23

Which spring rates would you recommend for 230lbs in gear- 2018 kx250?

By Anon.

By **Andy** · Answer

According to Race Tech, they recommend the 6.3 kg/mm rate shock spring for your weight on that 2018 Kawasaki KX250.

Question 24

Shock spring rate for 22 kx450, about 190 in gear, riding technical rocky stuff.

By Anon.

About 190 in gear. Ride technical Rocky stuff. The stock spring is too stiff and doesn't allow travel even with compression all the way soft. What spring rate should I get

By **Andy** · Answer

Race Tech recommends the 4.8 kg/mm spring for your weight and that kind of riding for that 2022 KX450.

Question 25

Front and rear spring 2021 yz250f. 190lbs with gear on, what spring rate do I need for front springs and rear spring for my bike?

By Beau

190lbs with gear on, what spring rate do I need for front springs and rear spring for my bike?

By **Andy** · Answer

For your weight on that 2021 YZ250F, Race Tech recommends .47 kg/mm front springs and 5.7 kg/mm for the rear spring.

Question 26

Im a 210 rider on a 2014 ktm 300xc what rating rear spring should i use?

By Kenneth B.

By **Andy** · Answer

The recommended rate shock spring for your weight on that bike would be 6.0 KG/MM.

Question 27

I have a 06 crf450r and 170 with gear n ride rough rocky terrain what springs do you recommend for front and rear

By Anon.

By **Andy** · Answer

For the forks springs, .47 kg/mm or the closest available rate to that would be recommended. As for the shock spring, 5.4 kg/mm is recommended.

Question 28

2008 crf450r im 220 lbs geared up what rear shock spring would be recommended?

By Anon.

By **Andy** · Answer

Race Tech recommends 6.00 Kg/mm rate spring for that bike with that weight rider.

Question 29

Just bought a 2007 triumph daytona 675 for the track and I'm curious about what springs I should get if I'm roughly 170 lbs with gear

By Anon.

By **Andy** · Answer

According to the Race Tech spring guide for your weight on that bike, they recommend 9.8 kg/mm spring.

Question 30

I'm 300lb and ride a 2002 fz1 what spring would you recommend

By Anon.

By **Andy** · Answer

You would want to go with the 11.6kg/mm rate spring for your weight on that 2002 Yamaha FZ1.

Question 31

What is the weight capacity on a 6.4 spring I am 220 lbs and I need a new spring for my 2000 Yamaha 426

By Anon.

By **Andy** · Answer

Race Tech claims that 6.4 kg/nm spring to be for a 240-250ish lb rider. If you are a more aggressive rider that should work well for you.

Question 32

Im looking for a heavyer spring for my 2014 yz 85 any suggestions?

By Jon

By **Staff** · Answer

It all depends on your weight and the intended purpose of the motorcycle in question. I would suggest visiting the Race Tech's website and go to their spring rate calculator for your 2014 YZ85. They have extensive product data and spring rate conversions based off of weight and riding style. It will automatically suggest a spring rate based of of your input. You should then be able to find the spring rate you need for your ride.

Specification	Details
Color	Varies (make selection above)
Country of Origin	USA
Inside Diameter	Varies (make selection above)
Length	Varies (make selection above)
Material	Steel
Position	Varies (make selection above)
Spring Rate	Varies (make selection above)

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