
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
Aftermarket Assassins AA Polaris P90X Primary Clutch SpringsSprings fit the P90X HD clutch found on the Pro XP Turbo R, Pro R, & 2021 RZR Turbo Turbo S Springs are for replacing your AA clutch kit springs or for the tuner who knows what spring they want Rough engagement rates below with our AA clutch weights. Engagement will vary depending on clutch weight design and overall arm weight Unless advanced at clutch tuning we do not suggest running any springs without our clutch kit Measured at 2. 45" & 1. 25"
- Springs fit the P90X HD clutch found on the Pro XP/Turbo R, Pro R, & 2021 RZR Turbo/Turbo S
- Springs are for replacing your AA clutch kit springs or for the tuner who knows what spring they want
- Rough engagement rates below with our AA clutch weights. Engagement will vary depending on clutch weight design and overall arm weight
- Unless advanced at clutch tuning we do not suggest running any springs without our clutch kit
- Measured at 2.45" & 1.25"
- Green/Silver 75-175 Spring: This is the lowest engagement spring we offer but also has a lower spring rate up top than our standard clutch kit springs, so you will lose 100-200 RPM and weights will need to be 1-2 magnets lighter to achieve the same peak RPM.
- Gray/Red 80-200 Spring: Excellent spring that is sometimes used in our clutch kits. Nice engagement around 1700-2000 RPM while still keeping the final spring rate (full shift rate) up close to our standard gray/yellow spring.
- Gray/Yellow 85-240 Spring: This is our standard clutch spring found in our P90X HD clutch kits with an engagement of 1800-2100 in most cases.
- Gray/White 115-240 Spring: Race Spring. This spring has the same full shift rate found in our gray/yellow standard primary spring, but has an engagement of 2500-2700 RPM. Keep in mind this spring will be harder on your already weak clutch because of the harsh engagement. Great to use with launch control if you want to risk it.
- Gray/Black 105-275 Spring: This is a great spring that engages at 2200-2300 RPM in most cases. This spring has a higher full shift rate which raises peak RPM around 200-300 RPM. Some may find this is a good dune spring if switching back/forth from dune to trail setups... you can install this spring when heading to the sand. This spring normally makes up most the RPM lost from the extra sand load, so adjusting weights may not be necessary.
Shared Shipping of $18.99 to the Lower 48
jds 1/27/23
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 470 reviews
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Product Reviews
★★★★★ 3
Good Fit but too long
Size: Medium, Color: Army Green
I would give these shirts a 5 star rating if they weren’t so long over the waist, even a medium sized it doesn’t matter way too long
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
A T-shirt chic? YES!!
Size: X-Large, Color: Wine Red
This is the second one of these shirts I’ve ordered. I don’t wear ties anymore, so I actually wear this mock turtle neck under a blazer, or a sports coat as my father used to call them. I wore a blue one the other evening and I wore it underneath a plaid blazer. Whoever would guess a T-shirt could be quite so chic. It stretches plenty, it’s light and it’s so comfortable. I have two of them now and I’m deciding on a third one.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Light and Warm
Size: XX-Large, Color: Royal Blue
Quite comfortable (with a little tape over the label on the inside left) perfect light weight shirt for 40°-50°.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Buenas
Size: Large, Color: Dark Grey
Muy buenas para el sol
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Soft and cozy fot
Fits well and is nice and cozy material look is as was needed for cos play uniform and fit was perfect the material is soft and is light weight for summer use for things without over heating and I am a big guy who over heats on a regular basis
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Reviewed in the United States on July 15, 2025
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