M:Part Sport 1 1/8 Inch Threadless Headset - Black

Customer Reviews (2)
2.5 / 5| Write your review
£14.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- A great value for money headset
- Durable hardened steel cups
- Sealed loose ball bearings.
- Compact 25.4 mm stack height
- All black in colour
- Includes star nut assembly
Product Reviews (2)
Questions & Answers (1) Q & A
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Product Reviews (2)
Overall Product Rating 2.5 / 5
Good bit of kit
By Stephen Short
01 Aug 2020
4 / 5
I recommend this product
ConsWater might be a problem in the future
ProsPrice and does the job
I used this on a child's touring bike, it was easy to fit and the end result was a very smooth feeling headset I would not hesitate to use the same again.
Spend a bit more on a better one
By Anonymous
13 Feb 2020
1 / 5
ConsLoose balls, not sealed, plastic parts under load
The cover and bottom cup are painted like the M:Part Pro headset (SJS Cycles part number : 17448blk) which I think looks better than the lettering pictured here. Both cups are steel and are also the outer bearing races. The inner races are steel rings held in place by circlips but the bearings are loose ball. There are no seals so the bearings are open on the inside where you can see the balls. The top cover and compression ring are plastic. It weighs 165g with all the component parts.

Because of the plastic parts and the bearings I would recommend spending more, as removing and pressing in the bearing cups requires special tools and you don't want to do this too often.
Questions & Answers (1)
is this ok for 30mm i/d crown race, & 34mm insert i/d of head tube
14 Jul 2018
....and also please advise the outer o/d of the bottom end external cup
Yes this will be suitable fore that, the OD should have no bearing on fitting. It is roughly 50mm.