SKU: 53977041945

North Shore Billet Post Mount Disc Brake Adapter 17mm

Sale price$40.49 Regular price$44.99
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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12

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Description

North Shore Billet Post Mount Disc Brake Adapter 17mmNorth Shore Billet Post Mount Disc Adapter 203mm 220mm Post Mount adapters (+17mm). These work with 220mm rotors on 20152020 Fox 40 and 49 forks with 203mm post mounts. Adapters available for Shimano, SRAM, Hope, Hayes, Formula etc. rotors: 180mm 183mm 185mm 203mm 220mm CNC machined from 6061 T6511 aluminum. Machined surfaces allow for better caliper alignment and a more rigid brake set up. The Post Mount standard is universal to the front and rear

North Shore Billet Post Mount Disc Adapter

203mm » 220mm Post Mount adapters (+17mm). These work with 220mm rotors on 2015–2020 Fox 40 and 49 forks with 203mm post mounts. 

Adapters available for Shimano, SRAM, Hope, Hayes, Formula etc. rotors:

  • 180mm
  • 183mm
  • 185mm
  • 203mm
  • 220mm

CNC machined from 6061 T6511 aluminum. Machined surfaces allow for better caliper alignment and a more rigid brake set-up.

The Post Mount standard is universal to the front and rear brakes.

Some frames/forks use a 160mm rotor with no adapter, some use a 180mm with no adapter. Check your frame/fork! Our adapters can be used on both forks and frames with 160mm and 180mm posts. Bumping up from a 203mm post mount (2015–2020 Fox 40 and 49 forks) to a 220 or 223mm rotor is also covered by our adapters.

PICKING THE CORRECT POST MOUNT DISC ADAPTER

  • To go from a 160mm post mount to 203mm rotor you will need a 43mm adapter.
  • To go from a 160mm post mount to 200mm rotor you will need a 40mm adapter.
  • To go from a 160mm post mount to 180mm rotor you will need a 20mm adapter and so on.
  • For 2016+ Fox 36 and 180mm rear brake mounts:
    • You will need the 23mm adapter to work with the 180mm post mount and a 203mm rotor.
  • Going from a 180mm post mount to a 200mm rotor requires the regular 20mm adapter.

The adapters do not come with mounting bolts. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 53977041945

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4.2 ★★★★★
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Julie Thurston
Dallas, US
★★★★★ 5
Big Guy Approved – No More Chair Drama
Finally found a big and tall office chair that doesn’t quit on me. The 600lbs support feels rock solid, and that wide spring cushion? Like sitting on a couch at my desk. I use it for work, gaming, even late-night scrolling—still comfy. Smooth wheels, adjustable arms, ergonomic back… it just works. If you’re tired of chairs tapping out early, this one’s built different.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Worth every penny.
This chair is exactly what I need for working from home. Its spacious seat and high weight capacity make it incredibly comfortable and reliable. The ergonomic design provides excellent back support, preventing fatigue even after long periods of sitting. The adjustable armrests are convenient and add extra comfort. The PU leather material gives it a premium feel while maintaining practicality for everyday use. I am very satisfied with this purchase and will definitely buy from them again.
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Reviewed in the United States on May 25, 2026
D
Verified Purchase
DeChele Walker
Lake Worth, US
★★★★★ 5
Great sturdy chair!
Color: Dark Black
The chair is very comfortable for long term sitting. I’d say the best part is that the arms also move around for those of us with bigger thighs. Totally worth the buy!
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Reviewed in the United States on May 26, 2026
E
Verified Purchase
Eric Dahlquist
San Leandro, US
★★★★★ 1
Misinformation!
Color: Dark Black, Color: Dark Black
Be aware that this does NOT ship with a class 4 gas lift. The whole reason I bought this chair was because it shows in the advertising this comes with a class 4 lift. Have contacted the seller and gotten the "we have a 1 year warranty" line. I am in the 300+ lb weight class. I have had many MANY other class 3 lifts and I know it will work as intended for about 2.5 years, and then it will slowly fail and not be able to stay up.
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Reviewed in the United States on June 11, 2026
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Verified Purchase
Rachel Hartley
Lexington, US
★★★★★ 4
Not strong enough
Color: Dark Black
It is okay , wish it was more sturdy, However, for the price it is okay.
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Reviewed in the United States on April 18, 2026

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