Why buy from Lowbrow?
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Free Shipping On US Orders $99 & up*
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Everything In Stock & Ships Fast!
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Fitment Guaranteed
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90 Day Money Back Guarantee
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No Restock Fees, Ever!
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Free Expert Motorcycle Technical Support

LOWBROW CUSTOMS USA MANUFACTURING SCHOLARSHIPS
Here at Lowbrow Customs we believe strongly in supporting US manufacturing. We have created multiple annual scholarships, one with the Lincoln Electric Welding School and another with Tri-C (Cuyahoga Community College) for students in financial need who are pursuing workforce training. From TIG welding to machining, this is the backbone of manufacturing in the United States. Want to learn more?
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Perfect fit
Easy install on my 75 ironhead. Fit great, will definitely order again

7/8-1” Neck Cups
No matter what I need for my bobber build LowBrow always has what I need and in stock and it’s shipped fast as ****. I will continue to do ongoing business with them and tell everyone about them that doesn’t know of them!! These press in perfect and ready for my springer!!
My 75 Iron
Great quality parts , have zero complaints with the parts and staff. I highly recommend lowbrow customs.
Fast delivery to switzerland... :-)
Fast delivery to switzerland... :-)
neck cup conversion
This worked great on my old ironhead to attach a wide glide front end
Conversion neck cups
The product is made very well and works just as ad stated. Prompt delivery also. Good company to work with!
Quality item. Neck cups
The neck cups were quality material ,fit perfect and worked exactly like they advertise I would have to give them thumbs up and five stars. They are a good company to do business with
Ironhead sportster neck cup conversion 7/8 to 1 inch
Great Product, easy install, Highly recommend this product and Lowbrow customs..
Friendly, professional and helpful with
Friendly, professional and helpful with finding the correct items I needed! 5star company!!!
Got the cups on time
Got the cups on time they fit perfect on the frame and I’m really happy with
Service
I have purchased a frame and neck cups from lowbrow now and the customer service has been excellent
7/8" to 1" neck cup conversion kit
Goodness gracious great balls of fire
Neck cup conversion wonderful
We could not get this part anywhere else. Fast delivery
Happy mistake
I discovered i needed to replace a triple tree bottom on a ironhead build, so ordered one on ebay for a 1980 sportster, which uses the smaller diameter shaft. They sent a 1” instead of the earley unit. Reordered, got another 1” shaft. Ordered the lowbrow conversion to fit my growing collection tree bottoms , and am now a happy camper. Nice fit and finish, and easy install, after you heat up the bearing everbody leaves on the old neck, to remove it.
Ironhead Sportster Neck Cup Conversion 7/8 inch to 1 inch
Great part, awesome construction (US made), received it quickly from Lowbrow, installed in minutes. Quality product.