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  • Deda Expander Bung
5360058217
Deda Expander Bung
Deda Expander Bung
  • Red
144

Deda Expander Bung

Save 11%
£14.99
List Price £16.99
(94) Read all reviews
Red 23.5-25.5
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Deda
14.99 GBP
Expandable plug. Mandatory for carbon fibre fork steerer.
Rated 4/5 based on 94 Customer reviews
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  • Description
  • Delivery & Returns
  • Customer Reviews
  • Q & A

Expandable plug. Mandatory for carbon fibre fork steerer.

Top Features of the Deda Expander Bung

Expandable plug
Machined aluminium alloy
Internal diameter: 23.5-25.5
1" 1/8 diameter
Length: 45mm
Weight: 32g

Deda's Expander Bung features a high-quality alloy construction with a high-grip knurled finish. This ensures it provides a firm hold on the inside of carbon fibre steerers, so you can corner and descend in confidence.

About the Deda brand

Deda Elementi design and manufacture high quality stems, handlebars, aerobars, transmissions and cycling accessories suitable for proffesionals to the recreational cyclist. Deda Elementi clearly assert their own way of thinking about designing components for competition bicycles. Whether you step out from your home to participate in Milano-Sanremo, or just to go for a ride with your friends, Deda Elementi produces components for your bicycle with exactly the same care and passion. Deda Elementi take components seriously, and they put the very same experience and engineering into the components for champions as they do for the most important bike in the world: yours.

Delivery Information

The delivery options available for shipping this product along with the contents of your basket to United Kingdom are:

  • Standard Delivery: Estimated Delivery Thursday 11/03/2021 – £2.99
    Spend £5.01 more to qualify for free delivery
  • Collect+: Delivery to one of 5500+ stores for collection at a time convenient to you from Tuesday 09/03/2021 - £2.99
  • Priority 1st Class Delivery: Estimated delivery Tuesday 09/03/2021 - £3.99

International Delivery

Wiggle ships to over 100 countries. To see what delivery options are available for other destinations you can update your delivery destination via the International Options feature at the top right of the website.

Goods are shipped from the UK. Does not include delivery charges, local taxes or import duties, if applicable.
More information on International delivery options

Returns Information

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

Deda Expander Bung is rated 3.9 out of 5 by 77.
Rated 3 out of 5 by parcor from ok This expander is OK. It is too large DIA for sone steerer tubes.
Date published: 2020-12-16
Rated 4 out of 5 by Anonymous from Beautiful and light. Bought this expander bung to match my Deda cockpit, Newton stem and 215 bars. The anodized red color screams of pro level performance with a very light 34 grams on my scale and the length just right providing enough support below the stem area. Though the looks and build quality is top class, I find the aluminum expander tough to stretch out using a short 6 mm hex key even after I tried applying grease to the top and bottom cones.
Date published: 2020-11-03
Rated 5 out of 5 by soutm from would buy again but unlikely ever to need to. !! Much better than the Hope one that it replaced. No slippage or lack of grip. Excellent bit of kit.
Date published: 2020-07-30
Rated 5 out of 5 by Vannich from One of the best A great quality expander bung which is easy to fit, and remove should you need to. The load is spread over a large area in the steerer which is perfect for a carbon steerer. Bought it for a new build to replace the cheap bung which came with my new frameset. Recommended.
Date published: 2020-05-05
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what internal diameter will it fit?

My existing bung is too wide for my new Tusk Lite full carbon forks (internal diameter 22mm) - will the Deda expander bung fit?
Asked by: fixedboy
Just about - but you might have to do the same as I did and use an old wire tie or something to hold the parts together but with the top wedge totally unthreaded from the bottom wedge. Drop the whole (dis-)assembly into the steerer, thread the top wedge into the bottom and pull the wire out once it's all nice and tight. A bit of a faff but once it's in it works great!
Answered by: SturdyAl
Date published: 2013-10-23

Has the bung got a hollow centre

I need an expander bung with a hollow centre so I can fit a hollow bolt to route the front brake cable through it as is the design of my Fuji D6. Is the centre of the expander hollow?
Asked by: LilStu
I apologise but the middle of the this expander bung is solid and does not have any channels to route any cables. I hope this helps.
Answered by: wigglegrant
Date published: 2013-10-23

What length bolt does this expander require?

Asked by: PW55
25-30mm will do just fine
Answered by: fbefhber
Date published: 2013-10-23

Carbon fork expander bung. Do you need to get a top cap too?

http://www.wiggle.co.uk/deda-expander-bung/ Do you have to buy the top cap and a bolt separately for this?
Asked by: Polky
Yes. I'd advise having at least a 5 mm spacer so that the top cap fits snugly
Answered by: PenguinCycles
Date published: 2019-05-27

can i use these with an alloy steerer

if not what should i use dont really want to use a star fangled nut as i havent the tools to install sfn
Asked by: scottytaz
if you have a bung it will work with it
Answered by: cycleofaddiction
Date published: 2013-10-23

What size steerer does this fit?

Will this fit a one-inch carbon steerer?
Asked by: manintights
It will be too bog for a 1" steerer - it's tight on a 1 1/8", unless it's very thin walled.
Answered by: SturdyAl
Date published: 2013-10-23

Bolt Length For Top Cap

This expander does not come with a top cap or top cap bolt. What length bolt is required with the top cap to pre load the headset. Looking at the pictures of the expander the top cap bolt needs to be long enough to reach into the expander to catch the threads.
Asked by: Nick1972
When you insert this into steerer shaft you tighten first with an 8 mm hex wrench. The top cap then can be bolted in place later without affecting the expander grip. Helpfully this instruction is not included with the product.
Answered by: Jacktwinkletoes
Date published: 2014-10-21

Carbon paste

Do I have to apply carbon assembly paste to instal this in carbon steerer?
Asked by: PeteRock
No!
Answered by: Gdorian
Date published: 2015-08-25

what length/diameter bolt does this require and do you sell them?

Asked by: GMDill
6 mm metric will do the job, Any length over about 40 mm will do. The actual length limiter is the steerer tube.
Answered by: Jacktwinkletoes
Date published: 2014-10-21

Depth / Width

what is the depth of this expander? why would this not be listed under description? Thanks
Asked by: Anonymous
The bung should be approximately 47 mm in length.
Answered by: WiggleJoe
Date published: 2014-05-20
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