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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Promax PI-1 Alloy Sealed Bearing 1" Press in Headset BlackThe PI 1 Alloy 4545 headset has an aluminum top cap, upper bearing cover, lower race and upper and lower cups. All aluminum construction results in a lightweight headset. Each headset is fitted with super smooth rolling, precision, 4545 angular contact sealed bearings. Because this versatile headset has 4545 angular contact bearings, you can use the included cups and install it in standard frames. Or, leave the cup in the box, and use it as an
The PI-1 Alloy 45×45 headset has an aluminum top cap, upper bearing cover, lower race and upper and lower cups. All-aluminum construction results in a lightweight headset. Each headset is fitted with super-smooth rolling, precision, 45×45 angular-contact sealed bearings.- Because this versatile headset has 45×45 angular-contact bearings, you can use the included cups and install it in standard frames. Or, leave the cup in the box, and use it as an Integrated headset
Product Specifics
- Color: Black
- Lower Stack Height: 5.6
- Bearing Type: 45/45 Degree ACB
- Crown Race: 26
- Weight: 120
- Defined Color: Black
- Upper Stack Height: 8.2
- S.H.I.S Upper: EC30
- S.H.I.S. Stem Clamp Diameter: 25.4 Threadless
- S.H.I.S Lower: EC30
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 657993126134
EAN: Not available
Manufacturer Part Number: PX-HS1300PI1-BK
HD3508
191728-Q0-L
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
4.4 ★★★★★
Based on 1460 reviews
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Product Reviews
★★★★★ 5
Well worth it. Great product.
Size: 1 Kit, Size: 1 Kit
For the inexpensive price it’s worth its weight in gold. I admittedly probably didn’t work on it as long or as hard as I should have, but I still had great results.
*** One warning: when it says to “tape up and cover your paint around it” do it! I figured I would just be careful but no I was wrong. It will REALLY damage your paint, so make sure you don’t get any on it. YES- This is the sanding discs too! They have chemicals on them, they are not regular discs. If you do get on paint, clean immediately! My only regret with this project and my fault, not theirs.
My headlights went from dingy yellow, to much brighter and definitely more clear. Love the results. Very happy with the purchase.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Great for the price
Size: 1 Kit, Size: 1 Kit
Worked great at clearing my headlights and at a great price, I had used a different headlight kit maybe 5-6 months before and it did not perform as good as this kit did, maybe it was a user error with the previous kit but this one cleared it easily and was very easy to do and had a nice clear shine.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Good stuff!
Size: 1 Kit
Good product, made a big difference. Easy to apply, Will buy again when needed.
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Reviewed in the United States on May 12, 2026
★★★★★ 4
I'm Not Disappointed ...
Size: 1 Kit, Size: 1 Kit
I knew going in that my expectations shouldn't be very high because my car is a first generation 2010 Kia Soul. So its old with 16 plus years of yellowing oxidation and some abrasion. I took a chance with doing this because of the reviews and pictures. To my surprise, it worked better than I anticipated and could hope for. My driver side(left) headlight was horrible but my passenger side(right) wasn't too shabby and didn't require as much care. This would have turned out better if I had power drill attachments of the same sanding grit to do this. My arm is going to be really sore come Sunday. 😆 It wasn't too hard to follow the instructions as they were very simple for the application process. I don't know about the 2 years for it lasting, but for now, its durable. Once I drive at night, I'll be able to
But all in all, it worked for me and its better than before I tackled it. All in all it looks good, I feel like I'll have a better beam when night 🌙 driving.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Works great. Definitely a good buy and value.
Size: 1 Kit
This was easy to use and made a world of difference on the lenses.
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Reviewed in the United States on May 1, 2026