The World's Largest Online Bike Store
  • Brand-X Seat Clamp & Bolt Double
  • Brand-X Seat Clamp & Bolt Double
  • RRP$10.49
  • |
  • SAVE24%

Select  Colour
Select  Diameter
Select  Option
Inc. Bolts
  • IN STOCK(5+)

  • right This item ships to United States of America
  • right Shipping amount : $9.99
  • right 365 DAYS to return or exchange
  • right Pay by Bank Transfer or PayPal or Card
Heavy duty and super strong, this double bolt design will keep your seatpost in place. Just make sure you have enough room on your frame!

• Heavy duty design
• Secure double bolt
• Forged alloy
  • Colour: Black - Silver, Black
  • Option: Inc. Bolts
  • Diameter: 34.9mm, 28.6mm, 30.0mm
Rated 4.6 out of 5 by 15 reviewers.
Rated 5 out of 5 by дёшево и несердито :) Родной регулируемых хомут не затягивал подседельный штырь, седло постоянно сползало вниз. А тут затянул два болта и забыл. 03 September 2014
Rated 5 out of 5 by Excellent seat clamp There are a lot of good seat clamps, but their price is too high. This simple double bolt clamp will do the job for those who weight a little more . I weight at about 100 kg and so far I haven't face any problems. Nice product 27 February 2014
Rated 5 out of 5 by Serious clamp This is a substantial clamp, it is in reality two separate clamps joined in size terms and as such offers that clamping capacity. A brilliant option for a slipping post if you cannot stop the slip with normal assembly pastes. This will however be below the clamping slots on the frame and if allowed to sit above will cause marks to your post, but this will depend on your needs. It will do the job it is made for just be aware this is a big clamp. 14 January 2014
Rated 5 out of 5 by отличный хомут Брал в июне на замену стоковому одинарному хомуту с эксцентриком, чтобы обезопасить своё любимое седло Brooks от кражи. Хомут оправдал себя на все 100%: 2 болта под шестигранник обеспечивают собой дополнительную защиту седла от кражи и очень прочно держат подседельный штырь в трубе. Последнее особенно актуально для агрессивного катания: даунхилл, триал, горные покатушки... Да ещё и по такой цене!!! Рекомендую. 02 December 2013
Rated 5 out of 5 by Just as powerful as it looks I bought one of these just for fun as it looked quite unique. The fixing power is no less than you imagine. I’ve used it with an adjustable seat post but have to replace it sooner or later. It chokes up the seat post and it often gets stuck… It is stable, and powerful. Possibly helpful usage may be, when you can’t find a suitable shim for your seat tube and a seat post with a gap too narrow, you may use the “hand-made Coke tin shim”, yet it may still be a little too unstable. Then, just try to clamp up hard with this one. It will take care of a very slight gap left (like 0.05 ~0.1mm) and it fixes them all right. It works, I’ve tried.No guarantee for the damage on your seat tube, though… 27 October 2013
Rated 4 out of 5 by Good clamp , little bit heavy * * * DONT BUY THIS ON 3.49 * * * its much more less, and wont fit in your bike, i made the mistake to buy one 3.49 diameter for my mtb, and was like 3.30 diameter, took it to a metal workshop and they grind it to make it more wide, now it fits but, i better had bought something else! Besides the size error! (hope somebody fix this) the clamp its and looks very nice! very strong , the second bolt add much more "holding" power! personaly bought it to keep in place me reverb dropper post! without puting much power to the bolts! with 2 bolts you need less power to make it tight. the downside is that this thing is a little heavy, big diffrence from the stock QR clamp i had! 08 October 2013
Rated 5 out of 5 by Keeps my saddle in place. Got myself a new bike and found the saddle was slowly working down, tightened the original clamp too much and split it. Found this and figured it might me a better option for my fat a**e. Arrived quickly (as always), fitted it and took a seven mile ride, while deliberately putting more weight on the seat than normal. It didn't move a single millimeter. TL;DR: If you've got a fat bum and need to keep your saddle from slipping down, get this. 06 September 2011
Rated 5 out of 5 by Holds on Tight Got this to replace original single bolt clamp which wouldn't do the job, even with jubilee clip on the seat post backing it up. Absolutely rock solid now. For the 28.6mm one the "enough room on your frame" required is 32mm. 28 October 2009
2 next>>
1 Question : 2 Answers

Product Q&A

Ask your questions. Share your answers.

« Back
Has staff answer
2 answers


how much height i need on my frame to mount this one ?
the description does say to watch out for that but does not says how much do we need... silly!
Age: 18 to 24
Gender: Male
Attitude: Passionate and Obsessive
1 year ago
Customer avatar
Read all my Q&A
Please wait while more information about outlaw is loaded.
Additional information about outlaw could not be loaded.
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0


Ideally you need a 32mm space to fit this clamp give a proper fit.
1 year ago
Customer avatar
Read all my Q&A
Please wait while more information about CRCChurchy is loaded.
Additional information about CRCChurchy could not be loaded.
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

This is a monster clamp! it is basically two full size clamps joined together, with a small joining section. This in principle allows a clamp on the frame and one on the seatpost. It is effective though.
Age: 45 to 54
Gender: Male
Attitude: Passionate and Obsessive
7 months ago
Customer avatar
Read all my Q&A
Please wait while more information about cyclenut is loaded.
Additional information about cyclenut could not be loaded.
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
1 of 1
1 of 1