For use with 2000+ Hayes 74mm eye-to-eye calipers (adapters/calipers for 22mm mounts are no longer available). (IS) International Standard 51mm tabs; (QR) quick release; (TA) thru-axle. Note: Fox-36/40 (thru-axle), Rock Shox Pike (Maxle), and Psylo (Tullio) axle forks use IS-QR adapters. 'Smart' part number is Hayes ID stamped/cast into adapter bracket (sometimes in conjunction with a leading 74and/or a trailing letter)Includes mounting bolts. Item Specifications: Size, +20mm, Color, Black, Model Name, 31, Caliper, Post Mount 74mm, Fork/Frame Mount, (PM) 74mm,

Hayes Post Mount Disc Brake Adaptor for 160mm to 180mm Rotor Compatibility

Reference Number: 6M20C6

Upgrade Your Brake Compatibility with the Hayes Post Mount Disc Brake Adaptor - 160mm Mount for 180mm Rotor

Optimize your mountain biking or Cyclocross setup with the Hayes Post Mount Disc Brake Adaptor, designed specifically for seamless integration of 160mm post mount brakes with a 180mm rotor. Crafted from durable, high-quality materials, this adaptor ensures reliable performance and long-lasting durability in demanding riding conditions.

Materials & Construction:

Constructed from precision-machined aluminum alloy, the Hayes Post Mount Disc Brake Adaptor offers an excellent balance of strength, lightweight performance, and corrosion resistance. Its robust build guarantees secure attachment and consistent braking performance across varied terrains.

Performance & Engineering:

Engineered for optimal brake caliper fitment and efficient power transfer, this adaptor allows for precise calibration of your disc brake setup. Its 160mm post mount configuration is ideal for upgrading your braking system to accommodate 180mm rotors, providing increased stopping power and improved modulation, especially on steep descents and technical trails.

Components & Technology:

The adaptor includes all necessary mounting bolts for easy installation, ensuring a hassle-free upgrade process. Designed for compatibility with Hayes post mount calipers and a wide range of frames and forks, it features a standardized design that ensures a tight, secure fit and reduces brake squeal.

Style & Use Case:

Perfect for mountain bike riders, cyclocross racers, and gravel enthusiasts seeking reliable, high-performance braking solutions, this adaptor enhances your bike's stopping power without adding unnecessary weight. Its sleek black anodized finish complements any bike aesthetic, making it a versatile addition to your cycling gear.

Innovative Features & Differentiators:

Designed with precision engineering and high-quality materials, the Hayes Post Mount Disc Brake Adaptor stands out for its durability, ease of installation, and compatibility flexibility. It's an essential upgrade for riders looking to enhance brake performance and safety on demanding trails and rugged terrains.

Upgrade your braking system today with the Hayes Post Mount Disc Brake Adaptor - the reliable choice for maximizing your bike's stopping power and confidence on every ride.

  • Optimize your braking system with the Hayes Post Mount Disc Brake Adaptor designed for 160mm to 180mm rotor compatibility, ensuring versatile performance across a wide range of bike setups.
  • Constructed from durable, high-strength aluminum alloy, this adaptor provides reliable, lightweight performance while resisting corrosion and wear for long-lasting use on tough trails and daily rides.
  • Engineered for precise fit and hassle-free installation, the Hayes Post Mount Disc Brake Adaptor includes all necessary mounting bolts, simplifying setup and ensuring secure attachment to standard post mount forks and frames.
  • Designed to enhance braking power and modulation, this adaptor enables seamless conversion between 160mm and 180mm rotors, making it ideal for upgrading or customizing your bike's braking system for better control.
  • Ideal for mountain biking, trail riding, and cycling enthusiasts seeking dependable braking components, this versatile adaptor combines innovative engineering with a sleek, functional design for optimal performance on any terrain.
Item Specifications
Size+20mm
ColorBlack
Model Name31
CaliperPost Mount 74mm
Fork/Frame Mount(PM) 74mm

Why 365 Cycles?

365 Cycles is an Authorized Hayes Dealer, and we offer the Full Hayes Warranty!

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Professional Customer Service- available 7 days a week
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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



BR3937 .

Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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