Build a Custom Cycling Pannier from Recycled Materials

Why bother making your own pannier?

Shop-bought panniers are fine, but they rarely fit perfectly, and the good ones cost a fortune. Making your own from recycled materials gives you a bag shaped around your rack, your load, and your heel clearance. Old tent flysheets, rucksack fabric, and webbing are surprisingly strong and often already waterproof. When something wears out, you can patch it yourself rather than binning the whole thing. It’s a satisfying weekend project that turns landfill-bound kit into a dependable touring companion.

What you’ll need

Start by rummaging through your retired gear. A ripped tent fly or groundsheet in 210D or 420D ripstop nylon is ideal — light, tough, and usually PU-coated on one side. An old rucksack or tool bag can donate webbing, buckles, and stiffening plastic. You’ll also want:

• About 1.5 metres of 25mm-wide webbing (nylon or polyester).
• Four side-release buckles (25mm) and two ladder locks.
• A stiffener panel: 2mm HDPE plastic from an old chopping board or sign, cut to size.
• Heavy polyester thread (such as Gutermann Mara 70) and a size 90/14 or 100/16 needle.
• Scissors, a hot knife or soldering iron for sealing edges, and a sewing machine that can handle thick layers. Hand-stitching with a speedy stitcher works too.
• Optional: reflective tape, seam sealer, and a couple of metres of 3mm bungee cord.

Designing the bag

A good cycling pannier is tall and narrow, with a tapered bottom to avoid heel strike. For most rear racks, aim for 35cm tall, 30cm wide, and 15cm deep — roughly 15 to 18 litres. Cut a paper pattern: a front panel, a back panel (the one against the rack), two side panels, a bottom panel, and a top flap that extends down the front by about 10cm. The back panel should be slightly taller to accommodate the rack hooks. Sketch where your rack’s top rail and lower stay will sit, then mark webbing loop positions on the back panel. Remember to add 1cm seam allowance all round. If you carry a laptop or a large sleeping bag, adjust the depth to suit.

Cutting and sewing the main body

Clean your tent fabric with warm soapy water and let it dry. Mark your pattern pieces with chalk, then cut. Seal all cut edges with a hot knife or soldering iron to stop fraying — this also fuses the coating. For the main seams, use a flat-felled seam: sew the panels wrong sides together with a 1cm allowance, trim one side, fold the other over it, and stitch again. This hides the raw edges and adds strength. Attach the side panels to the front and back, then sew the bottom panel in place. Reinforce every corner with a triangle of webbing or a few back-and-forth stitches. Turn the bag right side out and check the fit on your bike before going further.

The attachment system: the heart of a good pannier

This is where homemade panniers often fail, so take your time. You need two top hooks that clip over the rack’s top rail and a lower stabiliser to stop the bag swinging. A simple, secure method is to sew two webbing loops onto the back panel, each holding a side-release buckle. Thread a short strap through the buckle and around the rack rail, then cinch it tight. For the lower attachment, sew a small loop or a plastic D-ring near the bottom of the back panel, then use a bungee cord with a hook to catch the rack’s lower stay. Alternatively, make a stiff plastic back panel with slots that slide over the rack’s vertical struts. Always add a safety strap: a short length of webbing with a buckle that loops around the rack and clips to the bag, so it can’t bounce off on rough descents.

Finishing, waterproofing, and testing

Add a top flap with a buckle closure, or a roll-top if you prefer. Sew reflective tape on the sides and back for visibility. Seal all seams with a flexible seam sealer or a thin smear of silicone sealant. If your fabric isn’t fully waterproof, line the bag with a cheap dry bag or a bin liner. Now load it up — start with 5kg and ride over kerbs, gravel, and potholes. Check that the hooks don’t rattle and the lower strap stays put. Adjust the buckle positions if needed. After a few rides, re-tighten all stitches and re-seal any worn spots. With basic care, a well-made recycled pannier will outlast many shop-bought ones, and you’ll know exactly how to fix it when it eventually needs love.