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Promax QR-1 Seat Post Clamp
(20)

Promax QR-1 Seat Post Clamp

Item #: QR230B02
USD$13.49 SAVE 10% USD$14.99 msrp
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Gold
Qty
Jul 7, 2017
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Promax QR-1 Seat Post Clamp

Promax QR-1 Seatclamp

QR-1 seatpost clamps are cold forged and CNC machined from 6061-T6 aluminum alloy, then polished, anodized and precision laser etched. The QR-1, as the name implies, has a quick release lever, making seat height adjustments a snap. Weighing just 30 grams/1.1 ounces (31.8 size), it’s as lightweight as it is tough. The head of the lever and the face of the clamp are given a proprietary low-friction surface treatment that ensures smooth lever action for the life of the clamp without the need for a bushing. Laser-etched graphics and stainless steel hardware put the finishing touches on this snazzy seat collar. Understated, yet an excellent value.

  • Lightweight, yet solid alloy construction with 4mm Steel Retaining bolt
  • 30g (31.8mm size)
  • Choose the size that fits your frame (measure seat tube outer diameter)
4.6 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
15
4
0
0
1
works but i didnt get what is pictured
I ordered the red clamp and in the picture it is shown as being two tone with a black lever but the entire thing is red. its not a real big deal but I was attracted to the two tone one and was disappointed to get it all red.

PROS: Lightweight, Durable, Easy To Install, Attractive Design
July 2, 2014
Location:
treasure coast
great clamp! exactly what was needed and worked as described
Exactly what I needed. Would buy from this brand and from Jensen again.

PROS: Lightweight, Attractive Design, Easy To Install, Durable, Inexpensive

BEST USES: BMX, Casual Riding, Road Biking, Racing, Mountain Biking
August 24, 2015
Location:
burnaby bc canada
I would but this again
Great prouduct looks nice and weights nothing.

PROS: Durable, Lightweight, Attractive Design, Easy To Install
April 13, 2015
Location:
Sacramento, CA
lightweight and strong.
The weight of this seat post clamp is so little, that I almost thought that it was a joke. It turns out that this clamp is not only light but has the gripping strength of the hulk! The finish is pretty perfect and it just looks great. Don't let the price fool you...this is a solid piece. I should add that I weigh in at around 235lb's and this clamp has yet to fail.

PROS: Easy To Install, Lightweight, Durable, Attractive Design

BEST USES: Casual Riding, BMX, Road Biking, Mountain Biking, Upgrade, Racing
January 28, 2016
Location:
Pittsburgh, PA
Excellent Seat Post Clamp
Does exactly what it supposed to do and looks great. Very easy to install.

PROS: Lightweight, Durable, Easy To Install, Attractive Design
November 10, 2015
Location:
Jasper, GA
grips my post nicely
I like the way I can tighten and loosen it on my post to move it up and down

PROS: Attractive Design, Lightweight, Easy To Install

BEST USES: Casual Riding, Mountain Biking
December 13, 2015
Location:
Colorado
Lite and tight
Perfect quick clamp. I am constantly changing my seat height for different riding trail and practice. This clamp work flawlessly. I've had it about 3 weeks and it shows no signs of wear.

PROS: Attractive Design, Lightweight, Durable, Easy To Install

BEST USES: BMX, Mountain Biking, Road Biking, Casual Riding, Upgrade
March 20, 2016
Location:
Ellicott City, MD
Inexpensive and does the Job
Arrived promptly, well packaged and in good condition.The only issue so far is that the images showed red collar with black lever but the actual item arrived in full red color... I just liked it anyways.

PROS: Various Colors Available, Works As Expected, Inexpensive, Sylish Anodized Finishing
February 26, 2016
Location:
Puerto Rico
Replacement for lost OEM Clamp
Good quality, good fitment
September 5, 2016
Location:
Lexington, KY
Great clamp
Works great, looks good, nice and light. Can't beat the price.

PROS: Lightweight
April 13, 2016
Location:
phoenix

Q & A

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Browse 1 question Browse 1 question and 3 answers
Can this be used with a 30.9mm seatpost?
ddunmire14 on May 15, 2017
BEST ANSWER: Mine worked with the 30.9 seat post. But the bike has a 35 mm outside diameter post.

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Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.