M-Wave Seat Clamp with Rack Mount

Customer Reviews (3)
5 / 5| Write your review
£5.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- Alloy
- Black
- Only 36g (for 31.8 mm)
- With threads for luggage carrier fixation
- Available in 31.8 / 34.9 mm sizes
Product Reviews (3)
Questions & Answers (2) Q & A
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Product Reviews (3)
Overall Product Rating 5 / 5
Good piece of kit
By Rick
19 Apr 2019
5 / 5
I recommend this product
ProsIt works well. It also helps lift carrier stays above V brake making servicing easier.
Functions very well at intended purpose. As another reviewer wrote, the bolt is a bit short but perhaps that's because it's is not the pivoted nut type or did manufacturer simply run out of longer ones? Only a guess.
Excellent item
By Gary Ladhams
24 Oct 2018
5 / 5
I recommend this product
ConsClamp bolt is a bit short, it works OK but I replaced it with a longer bolt to maximise the clamping
ProsEasy to fit
Ideal to fit a rack to a bike without top fixing points.
The Best Solution To Have A Rear Rack/ Seat Mount
By Anonymous
12 Apr 2015
5 / 5
I recommend this product
Consno max loading indication
Prosinstant rack mount, single piece construction, simple
Casted and machined to size, by virtue, such construction improve product strength and reduce weakness points.

This is a great piece of accessory that can instantly give you a rack mounting eye.

The only regret is that manufacturer does not provide max loading test result. It will difficult to verify the safety of carrying a 150 lbs pillion.
Questions & Answers (2)
Will this fit 27.2 mm diameter seat post
20 Sep 2020
Hi, no. This is for 31.8 or 34.9 seat posts. Thanks
M Wave Seat Clamp For Carrier
25 Jun 2015
The seat post on my bike is 30.9mm and the tube it slides in to is around 34mm and I am not sure which size of clamp to buy, can you help on selecting the right size ?



Normally if the seatpost diameter is 30.9mm then the seat tube where the clamp fits to will be 34.9mm. If this is what yours measures then you can fit the larger size clamp in place of your current seat collar. If yours is a different size, then you will need to go for the smaller size and fit it directly to your seatpost with a shim to account for the difference in size.