SEATPOST CLAMP OR8 GRITGUARD 31.8 BKSeatpost clamp with integrated cover prevents dirt and mud from entering the frame at the seatpost junction. Rounded edges and ovalized hole design protects carbon frames and seatposts. AL6061-T6 alloy clamp with NBR cover. Ø31.8mm for Ø27.2mm seatpost and aluminum frame. Ø34.9mm for Ø30.9mm seatpost and aluminum frame, or Ø31.6mm seatpost and carbon frame. 16mm height. Item Specifications: Material, AL6061, Color, Black,

Origin8 GritGuard 31.8 Black Aluminum Seatpost Clamp with Mudguard Protection

Reference Number: 3DX5EN

Upgrade your bike's performance and durability with the Origin8 GritGuard Seatpost Clamp 31.8 Black - a precision-engineered component designed for serious cyclists. Crafted from high-grade AL6061-T6 alloy, this seatpost clamp combines strength, lightweight construction, and innovative features to enhance your ride.

Materials & Construction

Manufactured from premium AL6061-T6 aluminum alloy, the Origin8 GritGuard Seatpost Clamp offers exceptional strength-to-weight ratio, ensuring secure seatpost retention without adding unnecessary weight. The NBR rubber cover provides additional protection against dirt, mud, and debris, preventing contamination at the crucial seatpost junction and extending the lifespan of your bike frame.

Performance & Engineering

Designed with precision, this clamp features rounded edges and an ovalized hole design to safeguard carbon frames and seatposts from damage caused by sharp edges or uneven pressure. Its floating bolt system ensures consistent clamping force, reducing stress on your seatpost and frame, delivering a secure fit even on rugged trails or during intense rides.

Components & Technology

The clamp fits multiple diameters, including 31.8mm for 27.2mm seatposts and aluminum frames, as well as 34.9mm for 30.9mm seatposts and aluminum frames or 31.6mm for carbon frames. The 16mm height provides optimal clamping tension while maintaining a sleek profile suitable for various bike setups.

Style & Use Case

With a sleek black finish and rounded aesthetic, the Origin8 GritGuard Seatpost Clamp adds a modern touch to any bike. Its versatile sizing and durable design make it ideal for road cycling, mountain biking, and gravel adventures. Whether upgrading your current bike or building a custom machine, this clamp ensures reliable performance and a clean look.

Innovative & Differentiating Features

The integrated cover and floating bolt technology differentiate the GritGuard from typical clamps, providing enhanced dirt resistance and frame protection. Its ovalized holes and rounded edges highlight thoughtful design aimed at safeguarding carbon and aluminum frames from common riding stresses.

Key Benefits:

- Strong AL6061-T6 alloy construction for durability and lightweight performance

- Protective NBR cover prevents dirt ingress and frame corrosion

- Rounded edges and ovalized holes safeguard carbon frames and seatposts

- Multiple size options for versatile compatibility with aluminum and carbon frames

- Sleek black finish for a stylish, minimalist look

Upgrade your bike's clamp system with the Origin8 GritGuard Seatpost Clamp 31.8 Black - engineered for reliability, style, and performance in every ride.

  • Precision-engineered from durable AL6061-T6 aluminum, the Origin8 GritGuard Seatpost Clamp offers exceptional strength and lightweight performance for all cycling disciplines.
  • Designed with integrated dirt and mud cover, this clamp effectively prevents debris ingress at the seatpost junction, maintaining frame integrity and reducing maintenance.
  • Featuring rounded edges and an ovalized hole design, it provides increased protection for carbon frames and seatposts, ensuring long-lasting performance without frame damage.
  • Available in 31.8mm and 34.9mm sizes, the clamp is compatible with both 27.2mm and 30.9mm seatposts, making it versatile for a broad range of aluminum and carbon frames.
  • With sleek black finish and floating bolt technology, this clamp combines style and ease of adjustment, making it ideal for mountain biking, road cycling, and gravel adventures.
Item Specifications
MaterialAL6061

Why 365 Cycles?

365 Cycles is an Authorized Origin8 Dealer, and we offer the Full Origin8 Warranty!

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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: 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.



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Company Details

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

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