Like this site? Help us to make it better.

Biologic Bike Mount Weathercase



Keeps the rain off your phone and the phone on your bike, but the clunky mount lacks versatility

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

  • Exceptional
  • Excellent
  • Very Good
  • Good
  • Quite good
  • Average
  • Not so good
  • Poor
  • Bad
  • Appalling

Mounting a smartphone worth several hundred quid to your bike's stem asks some hard questions of the device you use to do it. Biologic's Bike Mount Weathercase answers some of them. It won't fling your iPhone into the gutter and it'll keep rain and dirt off. But the AnchorPoint mount is bulky, fits semi-permanently to one specific bike, and doesn't release the phone instantaneously. Rough-stuff tourers and mountain bikers should note that there's scant impact protection too, although it is padded against vibration. For a £32 mount, it's about what'd you'd expect.

My iPhone usually travels wrapped in a plastic bag (cost: nil) in a zipped jersey pocket. That way it can't fall off, or get smashed to bits if I fall off. If I want to track my ride, I can just leave the Strava app running, or more likely, depend on a Garmin Edge 500 instead. But I can see the navigational advantages of a smartphone up front for touring or for finding your way around an unfamiliar city, something I do a fair bit of on my Brompton.

Unfortunately, the mount is a bit bulky for an M-bar Brompton, though it should fit the stem or handlebar of most bikes. Stem fitting is best if possible.

The AnchorPoint mount attaches with cable ties. These won't come undone, so you'll need another AnchorPoint at £17 to switch the Weathercase easily between bikes. The weight of the phone can make the whole AnchorPoint rotate on the handlebar when you hit bumps. Since it's on a different axis, stem fitting prevents this problem. Note that the stem needs to be at least 80mm long for the AnchorPoint to fit. If you've slammed your stem, a steerer that sits 35mm-plus proud of that stem can also cause fitting problems.

The top of the AnchorPoint is a clamp. Four flat prongs, two each side, engage with indentations in the plastic back of the Weathercase. A knurled knob screws the clamp in and out, a bit like a G-clamp. It took me 10-20 seconds to get the Weathercase on and off the AnchorPoint. That's annoying when you're momentarily leaving your bike. On the plus side, the clamp never released the phone by accident.

Apart from its plastic back, the Weathercase is a soft-case made from welded-seam waterproof fabric. The zip is rainproof. It's a two-way zip, so you can leave the bottom end slightly open to fit the iPhone's charging cable through. The front of the Weathercase is clear and the touchscreen works quite well, if a bit spongily. (There's some give as the case is padded underneath the phone.) The camera works fine through the rear window too.

You can talk easily on the phone when its in the case, and it's thin enough to fit in your pocket without removing from the case. On the other hand, removing the case from the AnchorPoint leaves a lump of plastic scaffolding fixed to your bike's stem. Low-profile it isn't.

You can choose to attach the Weathercase in portrait or landscape mode. Unlike Topeak's Ridecase (£49.99 with mount), you can't switch between them - or not without removing the AnchorPoint from the bike and adjusting it with an Allen key. Similarly, you can change the viewing angle of the Weathercase by 10 degrees, but only by reassembling the AnchorPoint.

Using the Bike Mount Weathercase was a faff compared with Garmin's quarter-turn GPS bike mount. I wanted something similar here. It is available: check out the Quad Lock Bike Kit (£49.99), which leaves an inconspicuous mount when the phone is removed and comes with a host of alternative mounts, even a tripod mount for taking action shots of yourself with your phone when you're on tour. For road or mountain bike use, I'd also consider Cateye's Strada Smart (from £69.99), a head-unit that links to your pocketed phone via Bluetooth.

This Bike Mount Weathercase is for the iPhone 5/5s/5c. There's an identically priced one for the iPhone 6. Biologic also do a variety of other cases, such as a hard case for a variety of Android phones.


Keeps the rain off your phone and the phone on your bike, but the clunky mount lacks versatility

If you're thinking of buying this product using a cashback deal why not use the Top Cashback page and get some top cashback while helping to support your favourite independent cycling website test report

Make and model: Biologic Bike Mount Weathercase

Size tested: n/a

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Biologic say:

The WeatherCase protects your iPhone 5s/5c/5/4s/4 from rain, sweat and grime and fits on your bike with the AnchorPoint™ mount. Lightweight and easy-to-pocket, it's the perfect way to keep your phone safe and dry on rides or workouts.


Slim, pocketable design – slides easily into a pocket when you're off the bike

Weather protection – sonically welded waterproof fabric with rain proof zippers

CushionFit™ padding keeps phone snug in case and protects from vibrations

Full access to touchscreen, front and rear cameras

Hard sides for side protection

Clear voice quality with phone in case

Dual zippers allow on-bike recharging of phone

Attaches to handlebars with included AnchorPoint™ mount

I say:

It's probably best for recreational road bike use, touring, and commuting.

Rate the product for quality of construction:
Rate the product for performance:

Good rain resistance - good enough that I didn't panic in a light shower. Doesn't eject phone by accident.

Rate the product for durability:
Rate the product for weight, if applicable:
Rate the product for value:

Tell us how the product performed overall when used for its designed purpose

It does the job, just not very elegantly.

Tell us what you particularly liked about the product

My iPhone didn't get wet and short circuit.

Tell us what you particularly disliked about the product

The AnchorPoint mount.

Did you enjoy using the product? It was okay.

Would you consider buying the product? No.

Would you recommend the product to a friend? With caveats, yes.

Anything further to say about the product in conclusion?

Above average weather protection is enough to make it above average as a whole, as that's a massive deal for UK cyclists.

Overall rating: 6/10

About the tester

Age: 45  Height: 1.78m  Weight: 67kg

I usually ride: Ridgeback Solo World fixed wheel  My best bike is: Planet X Pro Carbon Track. Or Whyte M109

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: time trialling, cyclo cross, commuting, touring, club rides, sportives, general fitness riding, fixed/singlespeed, mtb,


Latest Comments

  • hirsute 0 sec ago

    I was not suggesting that they should get radar merely pointing out how radar can be useful. There was a recent review of a radar unit on here...

  • BalladOfStruth 7 min 2 sec ago

    There's something I don't miss from the morning commute - an Audi A3 overtaking me within spitting distance of a junction, hard on the brakes as it...

  • Patrick9-32 10 min 28 sec ago

    As someone who has four bikes, three of which currently have punctures I haven't got round to fixing yet, I don't appreciate the poor maintenance...

  • BalladOfStruth 11 min 22 sec ago

    I think it might actually be the least popular behaviour in all of web design.

  • lesterama 13 min 20 sec ago

    Here's some hope for us chunky blokes, even if most of won't consider spending £3.5k on wheels.

  • Rezis 14 min 53 sec ago

    If running it poorly affected their salaries and bonuses (and other accountabilities) maybe they would run it properly......

  • simonmb 26 min 14 sec ago

    Passing a cyclist in the opposite direction warrants at least a nod or a gentle lift of the hand from the bars. But what about overtaking a fellow...

  • brooksby 1 hour 21 min ago

    If a bicycle is the only vehicle stopped at a zebra crossing, you should just go around them.

  • Secret_squirrel 1 hour 52 min ago

    Im considering something like this to replace my current storage bottle on my downtube.  It does the job of keeping the tools safe and dry but at...

  • brooksby 11 hours 34 min ago

    The wheelbenders were on the verge again, so since there were no other bikes in sight i locked mine along the back of them....