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Promax QR-1 31.8mm Aluminum Quick Release Seatpost Clamp - Lightweight CNC Machined Black Bike Component
Reference Number: 3DX6EN
Upgrade your bike with the ProMax QR-1 Seatpost Clamp - the perfect blend of lightweight engineering, durability, and quick adjustment convenience. Designed for 31.8mm seatposts, this high-performance clamp is ideal for road bikes, mountain bikes, and cyclocross rigs seeking reliable, easy-to-use component upgrades.
Constructed from premium 6061-T6 aluminum alloy, the QR-1 seatpost clamp offers exceptional strength and corrosion resistance while maintaining an ultra-lightweight profile-just 30 grams (1.1 ounces) in the 31.8mm size. Cold forged and CNC machined for precision fit and quality craftsmanship, this clamp ensures secure seatpost retention under all riding conditions.
The standout feature of the QR-1 is its innovative quick-release lever, allowing effortless seat height adjustments on the fly-perfect for quick pit stops, changing riding conditions, or fine-tuning your position without tools. The lever head and clamp face have a proprietary low-friction surface treatment, delivering smooth, consistent actuation and reducing wear over time, eliminating the need for bushings or lubrication.
Enhanced with laser-etched graphics and stainless steel hardware, the ProMax QR-1 combines style with durability, ensuring long-lasting performance and a sleek, professional look. Whether you're a casual rider, competitive cyclist, or a race day enthusiast, this seatpost clamp provides the reliability and convenience you need to keep riding confidently.
Key Features:
- Crafted from high-strength 6061-T6 aluminum alloy for durability and corrosion resistance
- Ultra-lightweight design at only 30 grams (1.1 ounces)
- Precise CNC machining for perfect fit and finish
- Proprietary low-friction surface treatment for smooth operation without bushings
- Convenient quick-release lever for rapid seatpost adjustments
- Laser-etched graphics for sleek aesthetics
- Stainless steel hardware for lasting performance
- Compatible with 31.8mm seatposts - a must-have upgrade for serious cyclists
Optimize your bike's setup with the ProMax QR-1 Seatpost Clamp-combining innovative engineering, lightweight performance, and ease of use for your next ride.
- Lightweight and durable, the Promax QR-1 Seatpost Clamp is crafted from premium 6061-T6 aluminum alloy, offering superior strength and corrosion resistance for long-lasting performance.
- Engineered with a precision CNC-machined design and a cold forged construction process, this quick release clamp ensures a secure fit while maintaining optimal weight of just 30 grams (1.1 ounces) for 31.8mm seatposts.
- Featuring a proprietary low-friction surface treatment on the lever head and clamp face, the QR-1 delivers smooth, effortless seat height adjustments without the need for bushings or lubrication, enhancing overall ride quality.
- Designed with quick release technology, this clamp allows cyclists to make fast and reliable seatpost adjustments on the trail or during commutes, making it ideal for both recreational riders and competitive cyclists.
- With laser-etched graphics, stainless steel hardware, and an sleek black finish, the Promax QR-1 combines style and performance, ensuring it looks great and performs reliably under demanding cycling conditions.
| Item Specifications | |
|---|---|
| Color | Black |
| Defined Color | Black |
| Diameter | 31.8 |
| Material | Aluminum |
| Type | Quick Release |
Why 365 Cycles?
365 Cycles is an Authorized Promax Dealer, and we offer the Full Promax 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.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- 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.
