Selecting the correct Stelvio size is straightforward and depends primarily on your bike's wheelbase. Because mountain bikes vary significantly in length across disciplines, we offer two distinct box size options to ensure a perfect fit without unnecessary travel weight.

Step 1: Measure your wheelbase (Measurement C)

Measurement C is the horizontal distance between the centres of your front and rear axles. This is the most critical measurement for selecting your Stelvio.

Choose the Standard size if your wheelbase is up to 1215 mm. This size is ideal for the majority of modern trail and XC bikes.
Choose the Long Wheelbase size if your wheelbase is between 1216 mm and 1410 mm. This is specifically designed for the longest modern geometries, including enduro and downhill rigs.

Step 2: Check your bike's height (Measurement A)

Measurement A is the distance from the centre of the bottom bracket to the top of the seat tube. For both Stelvio models, the internal height accommodates most setups once the seat post is removed. However, if you have a dropper post, you can often leave it in the frame and simply lower it to its shortest position. If tallest part of the saddle still exceeds the height of the box when you measure, you will need to remove the post (with the cable still attached) and secure it alongside the frame.

Step 3: Check your fork and handlebars

The Stelvio is designed to accommodate bars when removed and secured to the side of the frame with straps, and long-travel suspension forks.

Handlebar Width: The internal width of both boxes is 360 mm, providing ample room for the frame and components once the bars are detached.
Fork Length: If you are running a long-travel fork (170mm+), you may need to use a simple compression strap or remove air to lower the front end slightly for a perfect fit.

Step 4: Check your cockpit-to-axle measurements (Measurements B1 and B2)

Finally, check the cockpit-to-axle measurements to ensure the frame fits within the outer shell with the bars removed.

B1: This is the linear distance from the centre of the front wheel axle to the top cap on the steerer tube. The maximum is 770 mm.
B2: This is the linear distance from the centre of the front wheel axle to the highest point on the stem. The maximum is 770 mm.

MTB

Stelvio MTB Bike Box

Built specifically for modern mountain bikes from XC to downhill from aerospace-grade premium aluminium. The Stelvio is the only dedicated long-wheelbase MTB bike box on the market, build for modern MTBs where geometries are longer, slacker, and less forgiving of travel solutions. Read more

Select Axle Size

Which Size Axles ?

Your Bike Details

Select Wheelbag Size

Which Size Wheelbags ?

Small (for tyre widths up to 42mm)

Large (for tyre widths over 42mm)

Customise Nameplate

What is This? ?

Select Accessories

Specifically designed for Buxumbox compatibility.

Recommended

AirTag Holder

Buxumbox AirTag holders are firmly riveted to the underside of the box chassis, consisting of a spacer and a cap, all made from laser-cut aluminium with a black anodised finish.

+$34.00

Recommended

Touring Pack

The Touring Pack brings together our premium quality helmet and shoe bags, plus additional webbing for your Buxumbox to secure more of your kit for those long cycle touring trips.

+$54.00

Recommended

Road Pack

If you've got a Stelvio MTB or Ventoux MTB box and want to use it for your road, gravel, or similar non-MTB bike, you'll need our Road Pack bundle. This comprises a road bracket set, 12x100 axle, 12x142 axle, and a pair of small wheel bags.

+$122.00

Recommended

Lefty Fork Kit

If your bike has a Lefty fork, you'll need to use this special mount to load your front axle into your box.

+$61.00

Recommended

Custom Decals

Custom single-colour vinyl decals for your Buxumbox. Please send your decals through in SVG format after ordering with placement instructions to info@buxumbox.com.

+$145.00

Select Travel Date Our production time is currently 4-6 weeks. If you have urgent travel plans, please get in touch - we can usually adjust our schedule to accommodate you.

Quick to pack/unpack

Secure closure

Smooth mobility

$1,440.00

Tax included

Trusted Delivery Partners
14 Day Returns
Lifetime Limited Warranty

Specifications Key Features How to Pack

Stelvio MTB Bike Box

$1,440.00

Modern mountain bike geometry has outgrown most bike boxes. Longer wheelbases, slacker head angles, and extended front centres mean the box that used to work probably doesn't anymore. The Stelvio was designed specifically for this.

Two distinct size options ensure every rig - from nimble XC bikes to the longest, slackest downhill machines - has a proper home.

The Standard size Stelvio is purpose-built for mountain bikes with wheelbases up to 1215 mm. Robust, adaptable, and built for the rigours of international transit, it's well suited to XC and smaller trail bikes.

The Long Wheelbase version is only dedicated LWB MTB bike box on the market. Designed for bikes with wheelbases from 1216 mm to 1410 mm, if your bike has outgrown every other box, the Stelvio Long Wheelbase was built for it. Twin anti-crush bars with three mounting positions provide structural integrity for the biggest of enduro and downhill builds.

See which Which Size? link in the Bike Box Size menu for more information on how to measure your bike to decide which size is right for you.

Both models are compatible with all current mountain bike axle standards: Thru Axle, Lefty, and Fat Bike setups. (Lefty requires an additional mounting bracket, available as an accessory). Security is handled by a series of heavy-duty latches and a TSA-approved key lock, meaning airport inspections are thorough, not destructive.

If your riding style changes, the box changes with you. Switch the front and rear mounting brackets - available as accessory packs - and convert the Stelvio for road, TT, or gravel use.

Hand-built in the UK from 6061-T6 aluminium. Four inline skate wheels with sealed bearings. Rear wheels fixed; front wheels caster for one-handed control through airports.

Available in Pavé Grey or our Enhanced Powder Coat Finish with a wide range of custom colours.

Weight	Standard: 15 kg (33.2 lb) Long Wheelbase: 17 kg (37.4 lb)
Dimensions (L x H x D)	Standard: 134 x 87 x 36 cm (13.4 x 34.3 x 14.2") Long Wheelbase: 152 x 87 x 36 cm (59.8 x 34.3 x 14.2")
Suitable for	XC, trail MTB (Standard size), long travel downhill, enduro, etc. bikes (Long Wheelbase size)
Pack/unpack time	10 min/10 min
Latches	4 Standard size, 6 Long Wheelbase size
Handles	4
Wheels	2 fixed, 2 caster
Accessories included	Wheelbags, anti-crush bar, axle fittings
Lead-time	Typically 4-6 weeks (including air-shipment)

Weight

Standard: 15 kg (33.2 lb)

Long Wheelbase: 17 kg (37.4 lb)

Dimensions (L x H x D)

Standard: 134 x 87 x 36 cm (13.4 x 34.3 x 14.2")

Long Wheelbase: 152 x 87 x 36 cm (59.8 x 34.3 x 14.2")

Suitable for

XC, trail MTB (Standard size), long travel downhill, enduro, etc. bikes (Long Wheelbase size)

Pack/unpack time

10 min/10 min

Latches

4 Standard size, 6 Long Wheelbase size

Handles

Wheels

2 fixed, 2 caster

Accessories included

Wheelbags, anti-crush bar, axle fittings

Lead-time

Typically 4-6 weeks (including air-shipment)

Prepare bike: Engage top gear. Remove wheels and partially deflate tyres. Remove seatpost (with dropper seat
posts, it may be possible fully drop seatpost instead of removing).
Prepare box: Open box, remove Anti-Crush Bars and wheel bags. Slide Rear Axle Mount to forward-most point
on carrier.
If applicable, place saddle/seatpost under webbing in base of box.
Attach Dummy Hubs (castellated aluminium tubes) to front and rear dropouts of bike using the bike’s own thru-axle
skewers – note that the chain runs over the top of the Dummy Hub to maintain tension in the chain.
Load frame to box. Cranks horizontal, right-hand crank forward.
Drop front Dummy Hub in to the cradle on Front Axle Mount – secure by inserting two Thru-axle Retaining Pins
through holes in Front Axle Mount. Then slide Rear Axle Mount backwards until rear Dummy Hub can be dropped in to Rear Axle Mount – secure with two Thru-axle Retaining Pins.
Place wheels in wheel bags. Load wheel bags to box, one each side on frame with the slots in the wheel bags
horizontal and adjacent to Anti-Crush Bar fittings.
Insert Anti-Crush Bars through slots in wheel bags and locate ends in one of three locations in Anti-Crush Retainer
(note that you should use same location points on left and right side). If your Anti-Crush Bar has the button release function, pull the button down and across to release, and to the right and forward to engage with the retainer.
Remove handlebar from stem by removing end cap on stem (alternatively, whole cockpit can be removed from
steerer column).
Rotate handlebar through approximately 90° and lower into box adjacent to right hand side of front fork and
headtube. Consider additional protection (e.g. pipe lagging) to brake levers.
Load any other items (e.g. helmet, shoes, track pump) to spare space in box (these should be housed in suitably
protective bags to prevent damage during transit).
Manoeuvre box lid over box base, taking care to ensure lid is correctly oriented by aligning two red rivets on front
edges. Check that upper and lower edges are positively engaged on all four sides of box. If top of steerer column touches the inside of the lid then compress forks to allow sufficient clearance.
Engage and tighten the six latches by turning handle through 90 degrees.
If required, lock case with key in TSA complaint lock in central latch on each side.
You’re all done – safe travels!

Key Features

Strength you can trust

Engineered aluminium mounting brackets hold the frame securely in the box without the need for foam or padding, all protected by our aerospace-grade 6061 aluminium panels and extrusions.

Fast to pack & unpack

We've designed our boxes to be simple and straightforward to pack and unpack, saving you time and effort. Bikes can be packed/unpacked in ten minutes or less.

Secure closure

TSA-compliant locks allow security checks without damaging the box, and the lid opens cleanly without disturbing the bike inside.

Smooth mobility

Four inline skate wheels with sealed bearings make for smooth rolling through airports. Rear wheels are fixed, front wheels are castering for easy control, even when fully loaded.

W h a t o u r c u s t o m e r s s a y

"As good as you can get! They shipped rapidly so my box came in time for an upcoming trip and communication was great on WhatsApp. The box is as good as you can get for protection and can be packed in less than 5 minutes."

Josh

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

"Seamless delivery to the US. Aubisque box is large, but easy to pack and unpack. Box did great in my first trip to Spain. No issues with airline check-in."

Eduardo

VERIFIED USER

Aubisque Aero & TT Bike Box

$1,575.00

"Great boxes, great service, a little gem of a company with a wonderful product. Simple concept, wonderful design and much better than anything else out there."

Lloyd

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

"Great company to work with. Box is built very well. Great design and engineering. The best protection a bike can get."

Mike

VERIFIED USER

Aubisque Aero & TT Bike Box

$1,575.00

"It's without a doubt the best bike box on the market - packs up quickly, looks nice, and most importantly, it protects my precious Canyon race bike on trains and airplanes. Highly recommend!"

Justin

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

"The product is insane, quality and detail spot on, it's like a Rimowa for my bicycle! I love it, and dealing with the team was easy and smooth."

David

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

"Buxumboxes are just fantastic. A great piece of engineering and a great team. My Tourmalet case has been put through the test of airline baggage handlers and continues to come through like a champ."

Keith

VERIFIED USER

Tourmalet Road Bike Box

$1,155.00

"Super responsive and was able to deliver my new Buxumbox to me in time for an upcoming trip. High quality and protects a bike like none other. Should be the industry standard for bike travel."

Jeff

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

"The Rolls Royce of bike boxes, guaranteed to generate bike box envy amongst plastic and soft bag users. Compared to previous Bike Box Alan, offers better protection and minimal bike disassembly."

Russ

VERIFIED USER

Ventoux Road Bike Box

$1,325.00

Our boxes come with a lifetime limited warranty

We're so confident in our boxes, we warranty them for life. Built from the ground up for cyclists who travel seriously, Buxumbox combines exceptional strength with effortless usability - trip after trip, year after year.

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Frequently Asked Questions

Will my bike fit in? What box do I need?

We have all the bases covered – there are four distinct models according to your type of bike and preference for size vs pack time. On each of the product pages there are measurement guides for each box to help you pick a size.

The Aubisque is our dedicated aero road, triathlon and time trial bike box. It’s been designed for bikes with integrated cockpits that can’t be disassembled easily.

The Ventoux will also accommodate seat tubes up to 635mm, covering many ISPs – and for giants, we can produce extended height versions on a build-to-order basis.

The Stelvio is our MTB box, with standard size for XC and trail bikes or long wheelbase option for big hitter downhill/enduro bikes.

The Tourmalet is our most compact box, requiring most disassembly (handlebars need to be removed). But it is the smallest and therefore lightest.

We’d always recommend using the smallest box the bike can fit in to – for that reason we even provide three height options for the compact Tourmalet model.

How long will it take to build my box?

Our lead times are typically 4-6 weeks from placing your order to your order being ready to ship. The reason we ask for a travel date is to ensure we don't take orders that we can't get customers in time to avoid disappointment. We can sometimes flex this and prioritise extremely urgent orders, so please just ask us if this is the case.

How long will it take for my box to arrive?

Typical delivery times following the initial 4-6 build lead time:

UK: 48 hours
EU: 4-5 days
US: 7-10 days
ROW: 7-10 days

We only use trusted, high quality shipping partners in FedEx and DHL.

Why aluminium?

It’s a wonderful sustainable material – extremely strong in the grades we use (mainly 6061, as used on high-end frames and in aerospace applications), light weight (panels are just 0.5mm thick), versatile (we use it as sheet, extrusions, turnings and stampings) corrosion resistant and eminently recyclable. And oh, it looks good too! Plus, we an offer an amazing range of powder coat colours too.

Will it dent or scratch?

Yes it will, but only in a good way. And that’s also what makes aluminium such a great material – each cycling journey will add a patina of use and earn the odd distinctive scar but without impacting strength or structure. We like to think we look better with age.

Of course, no material is indestructible and there is always a balance to be struck between strength and weight. If a panel is breached due to, for instance, wilful neglect on the part of a baggage handler then it would not spell the end for your box – panel repair/replacement is straightforward and supported by the factory.

Our experience is that a Buxumbox can take far more abuse than moulded plastic or semi-rigid boxes (and is repairable too!)

I hate packing - please tell me that packing your boxes is painless?

It’s painless. In fact, making these boxes simple to use, highly versatile and quick to pack is a design fundamental. You don’t need a degree in applied mental gymnastics here – we’re all about these boxes being intuitive to use. The Tourmalet takes less than ten minutes to pack or unpack and the Ventoux under five minutes, with the absolute minimum of disassembly required.

Will airlines charge for a bike box?

Probably yes, but that's true of every bike box on the market, but policies vary by airline. The good news is that there is a trend by airlines to offer transparent pricing polices for items of Sporting Goods rather than simply applying excess baggage rules.

You can normally find policies and rates by searching for Sporting Goods or Bicycles on your airline’s website.

Can you produce custom boxes?

Yes – within certain physical limits and the limits of physics! As well as producing custom sizes and hardware features for large or unusual bikes (even tandems), we can provide custom decals and logos – for an individual individual or a club/team.

The most popular customisation feature is to have the box powder-coated in a colour of the customer’s choice – examples of recent production can be found on our blog page and Facebook.

Please contact us on info@buxumbox.com with your specific requirements.

Ventoux Road Bike Box

Aubisque Aero & TT Bike Box

Tourmalet Road Bike Box