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TartyBikes Star Nut

Product code: 10541


In stock

TartyBikes Star Nut

Extra Large (26mm)
Large (23.5mm)
Medium (21mm)
Small (18mm)

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- Replacement star fangled nut for use inside fork steerer tubes to allow pre-load of headset bearings.
- Standard M6 x 1.0 thread.
- Available in various sizes: Extra Large (26mm diameter), Large (23.5mm diameter), Medium (21.0mm diameter) and Small (18.0mm diameter).
- To check which size you need, measure the internal diameter of your steerer and choose a star nut that's 1-3mm larger than that size.
- Extra Large generally fit 1 1/8" steel steerers, Large 1 1/8" standard alloy steerers, Medium are for use in Echo 1 1/8" alloy steerers and Small ideal for Inspired Fourplay or Team/Trialtech Sport forks..
- Sold singly.

Please note that star nuts are designed to be a tight fit so they don't pull back out when you tighten your headset. We strongly recommend using a star nut setting tool for fitting, or alternatively you can screw a bolt into the thread and then carefully tap the bolt to install. Damage to the star nut during fitting is not covered under warranty as these do not 'just fall apart'! Similarly, the warranty does not cover instances where the headset top cap bolt has been overtightened.

If you are buying forks and a star nut and would like us to fit it for you, add a Star Nut Fitting workshop item to your basket.

Additional Information

Small star nut differs cosmetically from pictured.



Which star nut goes in a standard echo m5 lite

Posted by Alick

Reply from TartyBikes

Hi Alick - If it's the Mk5, you would ideally need the Medium star nut. The Medium is a relatively tight fit so you need to be careful installing it (the Small is much too small). Thanks, Mark


Hi Which one do I need to buy for the new Czar Ion fork? Thanks Oleg

Posted by Oleg

Reply from TartyBikes

Hi Oleg - You would need the Small starnut for the Ion forks. Thanks, Mark

J. Fisher

Any chance you have a star nut to receive an M10 x1.25? Thx

Posted by J. Fisher

Reply from TartyBikes

Hello - the star nuts we have are only compatible with M6 bolts. The closest we have to what you're looking for would be something like the Gusset Hollow Star Nut Kit (Product code: 11013). Thanks, Mark

Tobias Olsson

Hey! What size for the Echo Sl 26 fork ?

Posted by Tobias Olsson

Reply from TartyBikes

Hi Tobias - That will depend on the year of SL fork as they have used different sizes. If you are able to measure the inside of your steerer tube and match it to the closest star nut size we supply it should work well. Thanks, Mark

Luke butkinshaw

My trials bikes forks are 17.9 mm which one would fit better the 18mm or the 21mm.Thank you

Posted by Luke butkinshaw

Reply from TartyBikes

Hi Luke - To be on the safe side, and to ensure the star nut grips your steerer tube well, I'd recommend going for the 21mm size as it should mean the tabs bend up more and grip the inner wall better. Thanks, Mark


Hi, which star nut would fit inside the end of the my handle bars?

Posted by Nathan

Reply from TartyBikes

Hi Nathan - That would depend on the type of bars you're using, as they use slightly different wall thickness. The easiest way to check would be to measure the inside of the end of your bars, and see which size it correlated to best. I would expect it to be around the size of the Medium star nut roughly. Thanks, Mark

thomas hall

hi i was wondering what would be the best fit for echo urban 26" forks ?

Posted by thomas hall

Reply from TartyBikes

Hi Thomas - A Medium star nut should do the trick for most years of Echo Urban fork, although to double check you can always measure the inner diameter of your steerer tube and compare it to our star nut sizes. Thanks, Mark


Hey guys, which of these would fit the clean forks? Thanks!

Posted by Joenu

Reply from TartyBikes

Hello - The Medium star nut seems to fit best. Thanks, Mark


Hi, what size would fit an 24" Echo Urban 2013 fork? Thanks,

Posted by Austin

Reply from TartyBikes

Hi Austin - you would require a Medium star nut for those forks. Hope that helps. Thanks, Flipp.


What size would be appropriate for the try-all carbon ?

Posted by Killingtvedt

Reply from TartyBikes

Hi Killingtvedt - the Try-All Karbon forks feature a threaded insert in the steerer meaning you do not need a star nut. Thanks, Flipp.

Tom Evans

What size would be appropriate for the rockman carbon forks?

Posted by Tom Evans

Reply from TartyBikes

Hi Tom - you would need a "Small" star nut for those forks. Thanks, Flipp.


What size do I need for the 26" forks TNN Engineering Curved Blade? Thanks.

Posted by Henri

Reply from TartyBikes

Hi Henri - thanks for your question. You'd need an "Extra Large" star nut to fit those forks. Thanks, Flipp.


which would fit the onza comp forks the blue ones think its 2010? would it be 21mm or 23mm? thanks

Posted by jack

Reply from TartyBikes

Hi Jack - I believe it'd be the Extra Large 26mm star nut for those forks. Thanks, Mark


wich one will fit the rockman spade 20'' fork?

Posted by guy

Reply from TartyBikes

Hi Guy - The Large (23.5mm) star nut would be best. Thanks, Mark


Which off these would fit onza zoot forks ?

Posted by Danny

Reply from TartyBikes

Hi Danny - The Large size should fit your Zoot forks fine. Thanks, Mark

Tom Anderson

which size would fit inspired element forks? cheers

Posted by Tom Anderson

Reply from TartyBikes

Hi Tom - You'd need the Small sized star nut to fit those forks. Thanks, Mark


Hi, what 1 of these would fit the Echo 09 20" forks? Thanks

Posted by derek

Reply from TartyBikes

Hi Derek - You'd need the 'Small' sized star nut. Thanks, Mark


which one of these would fit the steer tube on the neon curved 26" forks?

Posted by scott

Reply from TartyBikes

Hi Scott - Ideally a Medium starnut would work best, but it's possible to use a Large too. Thanks, Mark


Write a review


Based on 2 customer ratings


very helpful

Posted by ashley

So much less hassle than cutting down a big one!

Reply from TartyBikes

Hi Ash - They're certainly a handy addition! Thanks for the review.


Nifty replacement

Posted by Callum

Again just an odd little sod that you need. :D Thanks guys!!

Reply from TartyBikes

Hi Callum - It is handy having the sizes needed for trials forks - they can sometimes be pretty tricky to get hold of from regular shops due to them being an odd size. Thanks for the review!

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  • © TartyBikes Ltd, 2019
  • Tel. (UK). 01772 32 33 33
  • Tel. (Intl). 0044 1772 32 33 33

TartyBikes Ltd, Units 3-4, Club Street, Bamber Bridge, Preston, PR5 6FN

  • Company No. 6131482
  • VAT. GB 860 0270 59

All prices listed are inclusive of sales tax at the correct rate for your country

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