Tired of your headset loosening? To resolve this issue Hope have produced two aluminium wedges simply pull together and expand inside any 1.1/8" steerer giving you a solid thread to pull the stem down. Available in various colours.
Top Features:
1 1/8" steerers
Replaces star washer
Supplied with laser engraved, anodised aluminium cap and aluminium bolt
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Tired of your headset loosening? To resolve this issue Hope have produced two aluminium wedges simply pull together and expand inside any 1.1/8" steerer giving you a solid thread to pull the stem down. Available in various colours.
Description
Weight: 29g
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Delivery
The delivery options available for shipping this product along with the contents of your basket to USA are:
Standard Tracked Delivery: Estimated Delivery Monday 15/03/2021 – $17.98 Spend $96.75 more to qualify for free tracked delivery
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.
Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items. More information on Wiggle's return policy
Customer Reviews
Hope Head Doctor Expander is rated
3.9 out of
5 by
106.
Rated 3 out of
5 by
Jirka74 from
Complex installationI had problems with the installation. The inner part turned to the driver. Re-installing only helped. In the end, everything works.
Date published: 2020-09-30
Rated 5 out of
5 by
Peteski2 from
Prefer it to a star nutI used this when fitting a new fork as all the cheap star nut fitting tools were out of stock everywhere!
But I have to say it works very well and was even strong enough to use it to press home my crown race on the fork. Not that I'd recommend doing that with it, but as I had no press tool to fit the crown race on the steerer tube it did the job quite nicely!
Date published: 2020-07-06
Rated 5 out of
5 by
riftzoner from
Usual Hope High QualityAs usual this is made to the exacting standards of Hope. The Head Doctor oozes quality & does away with your Starfangled thing. Works on compression & a rubber O Ring which expands as the centre nut is tightened. Available in loads of colours. What's not to like?
Date published: 2020-04-02
Rated 1 out of
5 by
TomMatthewson from
Impossible to install - very misleading, avoidAs my postie will testify, I have bought many products form Wiggle; but this has been a rare bad experience. As a reasonably competent home mechanic I found the installation impossible without risking serious damage to the bike.
The Hope installation video shows the unit dropping into the steerer tube - do not be misled, this will probably not be the case. Even loosening the unit to its utmost, it is probably still about 0.75mm over-width (on a Canyon carbon tube). Searching the web this is common experience and it looks like only a combination of brute force with a hammer and chamfering the steerer tube will get it in. I am not prepared to do that and recommend others to think carefully before purchasing.
Of course after multiple fails to install, grease etc, the product is now used and impossible to return so has to go in the 'lost causes' parts bin the workshop!
Does this fit 1"1/8 or 1" steerer tubes? Carbon or alloy or both?
Reviews about problems fitting to 3T Funda forks. Is the expander too big to go into the steerer in these cases?
Asked by: kssl
1 1/8" alloy steerers. Carbon steerers have a thicker wall and so have a smaller internal diameter. You need to order a Carbon specific bung which is smaller and won't damage the inside of the steerer tube.
Answered by: WiggleDean
Date published: 2014-12-09
If I already have a star-fangled nut fitted, can I still use a Head Doctor?
Asked by: castle
It depends on how deep the star nut is set, if it is shallow then there will not be enough for the Hed Doctor to fit but if it is deeper down you may be able to use it. Worst case scenario you just pound the star nut deeper into your head tube so it fits
Answered by: ninjawhiteboy12
Date published: 2015-04-19
fitting inside tube
do you have to use a srewdriver down the middle of this and tap it home, as it says it fits all tubes but its seems really tight to me, I've loosed it off as much as possible but its still not fitting in easily
Asked by: golffinder
We would not advise using a screwdriver to fit this product.
If you are having issues fitting this please visit your local bike shop.
Answered by: WiggleAlex
Date published: 2014-04-10
1" Threadless Headset
I realise that this is made for 1" 1/8 steerers but the Hope tech website says that the maximum expansion is 26.6mm so I presume it will fit smaller? I'm interested in a tifosi carbon fork and would it be possible for you to check? Many thanks.
Asked by: barfuss
I can confirm that this is designed for a steerer tube of 1 1/8th as the inner diameter of the steerer is 26.6. I can confirm that this is not compatible with a 1" steerer tube. I hope this helps.
Answered by: wigglegrant
Date published: 2013-10-23
Is the Gunsmoke greenish? Is the Gunsmoke closer to green than gray?
Asked by: vincentvegaxxx
I have gun smoke components. Definitely grey not green.
Answered by: Batbling
Date published: 2013-10-23
Does this fit 1.25 or 1 inch steerer tubes? Carbon or alloy steerers?
Asked by: kssl
This fits standard 1 1/8" alloy steerer tubes.
Answered by: WiggleDean
Date published: 2013-10-23
Will the Head Doctor fit a tapered fork?
Hi,
I'm interested in fitting this to a Rockshox XC32 fork with a tapered steered. Will this work and if not are there are any other options rather than the star fangled nut for a tapered fork?
Cheers
Asked by: pedrosC
Even on this tapered for model, the Rockshox XC32 should feature a 1 1/8th inch steerer at its top and as such, the Head Doctor should be suitable.
Answered by: WiggleJoe
Date published: 2013-11-18
Hi I just ordered one of these and I think it mite be the wrong one as I have a full carbon steer should I have got the pro headset expander?
Asked by: MarkDyer
I've got one fitted in a carbon steerer and trust me it wasn't easy to do. I ended up removing the rubber ring and "modifying the aluminium some what. Fit's like a glove now, one that will never come off!!
Hope stuff is usually top quality but why this has to be made so tight is beyond me?
Answered by: Sportive1965
Date published: 2015-03-29
What is actually written on them, is it Hope, or the rest of it .com?
Asked by: sonic244
The will have Hope written on them.
Answered by: WiggleMattP
Date published: 2013-10-23
Will this work on Alpina track forks?
Asked by: Adam22
I can confirm this should be suitable without issue.
