Brompton Rear Rack Elastic Straps – fits AC Line (old) & PT Line (new)
Fits Line: A-Line, C-Line, P-Line, T-Line, G-Line
Your Brompton rear rack is useful. Until your bag slides off.
The rear rack gives you a flat platform to carry things, but nothing to keep them there. These elastic straps hook across the rack and hold your bag, backpack, or parcel firmly in place — even on rough roads. One-piece moulded nylon hooks, 20% more stretch than the original, and a full hardware kit included. Available in two versions depending on your frame triangle: AC Line for older A and C Line bikes, PT Line for newer P, T and 2025 C Line 12S bikes.
How it works
Each strap has a hook at one end and a loop at the other. The hook attaches to the rear rack or easywheel bolt on one side, the loop stretches across your load and hooks onto the other side. Two straps per pack give you a secure cross pattern over whatever you're carrying. The elastic has 20% more stretch than standard, so it grips items of different shapes and sizes without going slack.
The package includes two roller sets which mount to the rear rack as anchor points for the straps — all hardware (bolts, nuts, washers) is included. Before ordering, check which triangle your bike has: the old triangle has a different hook attachment point to the new one, which is why the two versions have different hook sizes.
Key features
- Two variants — AC Line (old triangle: A Line and C Line) and PT Line (new triangle: P Line, T Line, 2025 C Line 12S)
- High-elasticity straps — 20% more stretch than original, keeps cargo secure over bumps
- One-piece moulded nylon hooks — more durable than printed or hollow plastic versions
- Two installation options — mount via easywheel bolts or through the rear rack itself
- Full hardware included — 2 straps, 2 roller sets, 4 washers, 2 nuts, 4 bolts
- Carry almost anything — backpacks, jackets, groceries, flat parcels
Which version do I need?
The two versions differ in hook size and strap length to match the different attachment points on each frame triangle.
- AC Line — for A Line and C Line bikes with the old frame triangle (small hook, approx. 41.5cm strap length)
- PT Line — for P Line, T Line, and 2025 C Line 12S bikes with the new frame triangle (big hook, approx. 39cm strap length)
Not sure which triangle you have? Check the images above — the old triangle has a distinctive crossbar shape, the new one is a cleaner tube design. Still unsure? Send us a photo and we'll confirm it for you.
Got a question?
Want to double-check compatibility before ordering? Contact us — we're happy to help.
Specs
| Material | Elastic nylon straps, one-piece moulded nylon hooks |
| AC Line strap length | approx. 41.5cm |
| PT Line strap length | approx. 39cm |
| Hook type | Small hook (AC Line) / Big hook (PT Line) |
| Included | 2 straps, 2 roller sets, 4 washers, 2 nuts, 4 bolts (M6×40 and M6×50) |
| Compatibility | AC Line: Brompton A Line and C Line (old triangle) — PT Line: Brompton P Line, T Line, C Line 12S 2025 (new triangle) |
| Origin | China |
Why order from Foldrio?
Because we've been in the Brompton accessories world since 2019 — and we stand behind everything we sell.
Every item tested for Brompton compatibility
We don't list a product until we're confident it works. No guesswork, no surprises.
2 year warranty on all products
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If your order doesn't arrive, we send a free replacement.
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