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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
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For Your Every Summer RSVP, with Code: SUMMER15
Description
KB Performance Piston Kit - KB266.030 For Harley 1984-1999Features Manufactured from high strength, T 5, heat treated, 390 hypereutectic aluminum alloy Allow a tighter fit and longer piston and ring life Diamond machined pistons are held to plus or minus one gram weight and less than one half thousandth inch (. 0005") tolerances from piston to piston Each kit contains two pistons, pins, spiral lock pin clips and Hastings moly rings Replacement piston rings and pin lock rings available separately KB pistons
Features
- Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
- Allow a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings and pin lock rings available separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
Specs
| Compression Ratio | 10.5:1 |
| Bore Oversize | +0.030" |
| Piston Material | Hypereutectic Alloy |
| Bore Size | 3.498" |
| Product Name | Piston Kit |
| Riding Style | Street |
| Units | Kit |
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
4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Cute and comfy
Size: 30W x 29L, Color: Truest Blue
So comfortable and cute! I sized down and they fit just fine.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Fre People quality and stylish Jean
Size: 25, Color: Truest Blue
quality jean/confort as usual because I have same jean in other colors / size is perfect as their size chart
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Runs big
Size: 24, Color: Night Hawk
Super cute but runs big. I’m typically a 25 and bought a 24. It’s still too big
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Reviewed in the United States on May 26, 2026
★★★★★ 4
SUPER great denim-should last for years!
Size: 30, Color: Truest Blue
lI don't know if these will be flattering on me, but I LOVE THEM. They're hip and cool and I will wear them although I am 65. Would look best with shorter shirts, but of course, not showing belly. A slim young woman would "kill" this look. Denim is heavy duty and all hardware top class. The ad said to size down, but I ordered my regular size. The waist is a little tight on me, but the barrel legs are loose and hang nicely. Definitely something I will wear with platform ankle boots or sneakers. I anticipate people will absolutely love them (younger folk) where people my age, may say hmmm because they are a statement piece.
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Reviewed in the United States on December 4, 2024
★★★★★ 5
Awesome Jeans!!
Size: 25, Color: Truest Blue
I absolutely LOVE these jeans!!! Free people what can I say top quality and style all the way.
I wash in cold and hang to dry always. They are your perfect jeans to dress up or casual. Highly recommend
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Reviewed in the United States on May 3, 2026