Blackburn Bar Bags

Fitting Your Blackburn Bar Bag: What to Check Before You Mount Up

Getting a Blackburn handlebar bag to sit right is mostly straightforward, but there are a couple of measurements worth taking before anything goes on the bike. First, bar width. The Outpost roll-style bags work best on flat bars or drop bars in the 560 - 760mm range - go much narrower and the harness straps start to crowd the brake lever mounts; go wider and you may struggle to route cables cleanly around the mounting blocks. Check your bar width against Blackburn's listed compatibility before ordering.

Cable routing is the one that catches people out. Whether you're on a Outpost Elite with its rigid alloy mounting bracket or a strap-based Outpost harness, your gear and brake cables need to pass cleanly behind or around the mount without being pinched. A pinched cable means ghost shifting on a singletrack descent or a brake that doesn't release fully - neither is something you want to discover mid-ride. Take ten minutes to trace your cable run before you tighten anything down.

The other check is head tube clearance - specifically, the gap between the underside of your handlebars and the top of your front tyre at full fork compression. For hardtails and rigid bikes, aim for at least 150 - 200mm of clearance. If you're running a suspension fork, you must account for bottom-out, not just sag. A bag that clears the tyre on a smooth road can still catch it on a heavy hit through a pothole on the Peak District grit roads. Measure with the fork compressed as far as it'll go, and leave yourself a comfortable margin. A bag buzzing your tyre at speed is a handling problem, not just an irritating noise.

Outpost Elite, Outpost, or Grid - Which One's Actually for You?

Blackburn runs three distinct tiers here, and the differences are meaningful rather than cosmetic. The Outpost Elite sits at the top. Its defining feature is a fixed aluminium mounting bracket that clamps directly to the handlebar, completely eliminating the bag sway you get with strap systems on rougher surfaces. That rigidity also protects your cables - the alloy bracket keeps the harness geometry consistent, so nothing shifts under load. If you're heading into proper off-road bikepacking territory, Scottish gravel tracks, or multi-day loaded touring where stability at the front end genuinely affects handling, this is the version to look at. The welded-seam drybag that comes with it is removable, so you can pull your kit out at camp without unbolting anything from the bike.

The standard Outpost uses a heavy-duty strap harness system rather than a fixed bracket. It's more versatile across different bar and head tube shapes, and the setup is quicker to transfer between bikes. You do get a small amount of movement under load compared to the Elite - not dramatic, but noticeable on loose descents. Still, for most loaded gravel riding and light bikepacking, it's more than adequate, and the same welded-seam drybag approach means your waterproofing credentials are identical. If Apidura bar bags are on your shortlist, the Outpost sits in a similar bracket for capacity and weather resistance, though Blackburn's harness construction has a distinctly more mechanical, bombproof feel to it.

The Grid series is the everyday option. Smaller capacity, lighter construction, and built around Blackburn's Grid reflective technology - a reflective pattern worked into the bag material itself rather than added as strips. That makes a real difference at dusk on a commute or an autumn gravel loop when you're relying on drivers actually seeing you. The Grid bags don't use the same drybag insert system as the Outpost line, so they're water-resistant rather than fully waterproof - worth knowing if you're planning to use one through a proper Welsh winter. For a lighter day-trip setup, pairing a Grid bag with Blackburn lights on the bars makes for a tidy, visibility-first cockpit. If you want a stripped-back alternative from another brand, Altura bar bags cover similar ground at the commuter end of the market.

UK Grit, Wet Straps, and Keeping Your Head Tube Intact

British riding conditions do specific things to bar bags that don't show up in dry-climate test reports. The first is strap abrasion. Any strap-mounted bag - Blackburn's included - will trap grit between the strap and whatever it's touching. On a steel or alloy head tube that's annoying; on a carbon head tube it's a slow-motion disaster. Before you fit any strap-based harness, wrap the contact points on your frame and bars with helicopter tape (frame protection film). It's cheap, invisible once applied, and saves you from sanding through your clearcoat over a few months of muddy rides.

The buckles on the Outpost harness are robust, but they will jam if mud dries inside them. A stiff brush and a quick rinse after a mucky ride is all it takes - don't let it build up. If a buckle starts to feel stiff, work it open and closed under running water rather than forcing it, which can crack the housing in cold weather.

On the waterproofing side, the welded-seam drybags that come with the Outpost and Outpost Elite are the real deal - seams are heat-bonded rather than stitched, so there's no needle-hole water ingress. The roll-top closure is only as watertight as you make it, though. Roll it at least three full times and clip the buckle down before you set off. Air trapped inside actually helps create a seal, so don't try to compress the bag completely flat - roll it with some air still inside and the closure performs better in heavy rain. For UK winters, that's not optional advice.

Compared to Ortlieb bar bags, which use a similar welded construction philosophy, the Blackburn drybags are competitive on waterproofing but the Ortlieb attachment systems tend to be more proprietary. Blackburn's harness works across a broader range of bar shapes, which is a genuine advantage if you're switching the bag between bikes.

Frequently Asked Questions

How do you attach a Blackburn Outpost handlebar bag?

The standard Outpost uses a strap harness that wraps around the handlebars and clips to the head tube with a secondary strap. The Outpost Elite swaps the strap for a rigid alloy clamp that bolts directly to the bar. Whichever version you're fitting, route your brake and gear cables before you tighten anything - you want them sitting cleanly behind or around the mounting blocks, not pinched underneath.

Are Blackburn bar bags fully waterproof?

The Outpost and Outpost Elite models include removable welded-seam drybags that are fully waterproof - the seams are heat-bonded, not stitched, so there's no hidden ingress point. Roll the closure properly (at least three full rolls) and you're genuinely protected in heavy rain. The Grid series bags are water-resistant rather than waterproof, so they're better suited to dry-weather or short commutes than all-day soakings.

How much clearance do I need for a handlebar bag?

A minimum of 150 - 200mm between the bottom of your bar bag and the top of your front tyre is the working figure for rigid forks. If you're on a suspension fork, measure with the fork fully compressed - bottom-out, not just sag - because a bag that clears on smooth tarmac can still contact the tyre on a hard hit. Better to have more room than you think you need.

Looking to complete your touring setup? Pair your bar bag with Blackburn frame bags and Blackburn saddle bags for balanced weight distribution across the bike - front-heavy or rear-heavy loading both affect handling more than most riders expect until they try a properly balanced rig.