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Triban 900, Waterproof Smartphone Holder

Sale price: $20.00 Regular price: $29.99

Carry and protect your smartphone on your bike under any circumstances. Waterproof pocket.

Color: Select a color
Size: Select a size
Sale price: $20.00 Regular price: $29.99

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8555369

Product Features

Triban 900, Waterproof Smartphone Holder | Designed for carrying your smartphone on your bike (mounts on the stem or handlebar). Total protection against rain.

Carry and protect your smartphone on your bike under any circumstances. Waterproof pocket.

A photo of the Triban 900, Waterproof Smartphone Holder in use


Handlebar/stem diameter (in):0.8"to1.4" Max phone dimensions (in):6.1"x3.1"x0.3"




A sturdy holder with screw clamp to ensure smartphone remains perfectly stable.

Shock protection

Protects against bumps and splashes.

Easy assembly/dismantling

Tool-free fitting. Simply slide the phone onto the holder.


Protective touchscreen.

Easy to read

Can be mounted in portrait or landscape mode.

Product Customer Reviews

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679 Reviews
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Triban 900, Waterproof Smartphone Holder,base color
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Water proof gem

Great little water proof phone holder. Sturdy mount. Great value

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Very expensive

Very expensive

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Ok product

Value for money. The down side is you have to take the phone out to operate and no access for headphones unless wireless.

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Hi Danijela,

Apologies for a late response. We have been slowly clearing up our backlog but I would like to assure you that we will be answering/resolving ALL our customer issues. We thank you for being patient with us.

Danijela, thank you for your review on our 900L Waterproof Bike Smartphone Holder! We're sorry this item did not meet your expectations.

Your feedback is greatly appreciated - we'll relay it to our design team to see how we can improve the protective touch screen in our future designs.

We look forward to more of your reviews and sharing! Thank you and I wish you a pleasant week! :)





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Hard sides

If your phone has side buttons it is difficult to push them due to the hard plastic sides on this case.

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Not a bad product at all.

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Water Leaking

I bought this product on 18/05/2021, and unfortunately the product started to leak. After a while, the product cracks at the folds and starts to leak water.

holder that comes off

first bike ride with this holder and my phone. at the third car speed bump, the new holder was thrown off my handlebars on the road. result: a completely destroyed pouch and above all a broken and unusable smartphone.... I am very very disappointed with the product

Waterproof bike


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Too Small

I had to cut open the holder to use my iPhone XR. This holder is terrible.

Do you sell a spare bracket for this?

Hi, this works really well however it would be great if I could purchase another bracket that I can fit to my other bike - do you sell the bracket separately? (I can't find it on your website)

Does exactly what it was bought to to.

Perfect and great value. I would have got very lost without it to show my maps. Only recommendation is to make the next version with a window for your camera to capture your rides.

Tougher than you'd think

I've had a number of phone holders over the years and the all break after a couple of months. I mountain bike over some pretty rough stuff and sooner or later the stiffer mounts crack and fail. However this one just flops about a bit, but has never broken. Even after some spectacular offs it's remained attached. If there's a downside, it's due to its waterproofing, in that should you need to get your phone out, for a photo say, it's a bit of a palarva....but a least the waterproof system works.

Good product for waterproof opening is a hassle.

Good product for waterproofing and keeping your phone safe. Good for serious bikers who don’t need to keep taking our the phone if uou want take out your phone for photos or anything then it’s a little irritating to open the flap and unroll and pull out not so easy - the plastic see through is quite thick so sometimes not easy to scroll your phone but that’s okay because it’s good protection - just first fits iPhone 11 exact

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Hello Manoj

Thank you for supporting our products. We are happy to hear that you have a pleasant product experience.


We look forward to seeing you again soon and hope you can continue to have fun with our products.


Thank you again for your support. 


Stay healthy. 




Terrin Ng

Decathlon Hong Kong Cycling Team

not very practical

touch screen doesn't function well

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Hello Jc,

Firstly, we apologise for the uncomfortable product experience created by our product.

We take great care to ensure that important matters such as this are properly managed. 

The issue has been already passed to the production line and we will keep striving for the best on the quality issue.

Once again, we would like to apologise for the inconvenience created by the related product. 

You are welcome to visit any of our stores to exchange or refund in any of our stores.

Thank you for your support and wish to see you again soon.

Should you have any enquiries, please do not hesitate to contact us for further assistance.

Stay healthy.


Terrin Ng

Decathlon Hong Kong Cycling Team


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Additional Product Information


Main fabric

  • 7% Steel
  • 15% Rubber - Synthetic
  • 24% Polyamide 6
  • 54% Thermoplastic polyurethane
  • 7% Steel
  • 15% Rubber - Synthetic
  • 24% Polyamide 6
  • 54% Thermoplastic polyurethane


This holder can fit a smartphone up to the following max. dimensions: Height: 6.1". Width: 3.4". Depth: 8 mm Also available in a smaller version (ref. 8555370).


With Decathlon Coach, you can measure your speed, know about the distance you covered and view your GPS route: all stats close to hand. FREE mobile app available on Apple Store and Google Play.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual