These seatpost clamps are designed to work with Pinhead's uniquely keyed locking bolt.Fits all frame and seatpost sizes. Includes locking bolt and key. Uniquely keyed pattern.

Universal Pinhead Seatpost Clamp with Locking Bolt & Key - Secure, Adjustable, Rust-Resistant Aluminum

Reference Number: 2W34V5

Upgrade your bicycle's saddle security with the Pinhead Seat Collar Locking Seatpost Clamp, a universal and innovative solution designed for cyclists who value safety, durability, and convenience. Crafted from high-quality materials, this seat clamp ensures a secure fit and peace of mind on every ride.

Premium Materials & Construction

Constructed from durable, lightweight aluminum alloy, the Pinhead Seat Collar Locking Clamp offers exceptional corrosion resistance and strength. Its sleek anodized finish not only provides added durability but also gives your bike a clean, professional look.

Performance & Engineering

Engineered for precision, this clamp accommodates all frame and seatpost sizes, making it a versatile choice for a wide range of bicycles-from mountain bikes and road bikes to urban cruisers. Its robust locking mechanism ensures your saddle remains firmly in place, even during high-impact rides or rugged terrain.

Innovative Locking Components & Technology

Featuring Pinhead's uniquely keyed locking bolt and matching key, this seat clamp prevents tampering and unauthorized saddle adjustments. The advanced keyed pattern adds an extra layer of security, making it ideal for cyclists who frequently leave their bikes unattended or participate in bike-sharing programs.

Style & Use Case

With a sleek, minimalist design, the Pinhead Locking Seatpost Clamp complements any bike style-whether you're into mountain biking, road racing, or everyday commuting. Its easy installation process, combined with the secure locking feature, makes it perfect for both casual riders and serious cyclists seeking peace of mind.

Key Features:

- Universal fit for all frame diameters and seatpost sizes

- Includes locking bolt and specially designed key for enhanced security

- Uniquely keyed pattern prevents theft and tampering

- Made from high-strength, lightweight aluminum alloy for durability and longevity

Secure your saddle with confidence-choose the Pinhead Seat Collar Locking Seatpost Clamp for unmatched security, reliable performance, and a sleek aesthetic. Perfect for cyclists seeking a trusted locking solution that combines innovative technology with superior engineering.

  • Universal fit seatpost clamp compatible with all frame and seatpost sizes, ensuring versatile installation across your bike collection.
  • Constructed with durable, high-strength materials to provide reliable, secure clamping under demanding riding conditions and absorbing vibrations for smoother rides.
  • Equipped with Pinhead's innovative keyed locking bolt system, offering enhanced security against theft and unauthorized adjustments, with precise control over tightening.
  • Designed for seamless integration with Pinhead's locking bolt and key, featuring a unique keyed pattern that guarantees a secure, tamper-resistant connection each ride.
  • Stylish and functional, this locking seatpost clamp combines sleek engineering with practical use, making it ideal for both casual riders and competitive cyclists seeking safety and performance.

Why 365 Cycles?

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

Fast Shipping!

Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!

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.



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Company Details

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

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