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  • Brompton 2020 Borough Roll Top Bag - Large in Grey  (5251574403)
  • Brompton Borough Large Roll Top Bag (5251574403)
  • Brompton Borough Roll Top Bag L with Integrated Bottle Pocket (5251574403)
  • Brompton Borough Roll Top Bag L Extra Large Capacity (5251574403)
  • Brompton Borough Roll Top Bag L new for 2020 (5251574403)
  • Brompton Borough Large 28L Roll Top Bag (5251574403)
  • Brompton Borough Roll Top Bag For Brompton Folding Bikes (5251574403)
  • Brompton Borough Roll Top Bag L in Grey (5251574403)





We currently have 5 in stock.

The Brompton Borough Roll Top Bag - Large is a fresh update on the hugely popular Brompton T-Bag with improved functionality and performance. It is a large messenger style bag with a massive 28L capacity, roll-top closure, water bottle pouch and impressive weather resistance. The largest bag Brompton makes, the Borough Roll Top Bag is perfect for bike packing, touring or just large grocery trips. Its durable construction and understated appearance makes this an ideal accessory for any Brompton rider wanting to carry that little bit more.     

Constructed from heavy duty 1000D Cordura Broken Twill fabric for fantastic durability and weather resistance, the bag has an extra large main compartment with a large zippered inner pocket, two front zippered pockets, and two rear water bottle pockets. An easy access high visibility rain cover with a 3M reflective strip is also included for those unexpected rain showers which can also be used to make you more visible on the streets and keep the bag looking fresh. 

Our favourite Brompton bag here at Curbside HQ.

  • Genuine Brompton Accessories
  • Brompton Borough Roll Top Bag L
  • Extra large capacity messenger Bag - Ideal for weekends away, bike packing, cycle touring, large shopping trips or even carrying a small dog
  • Constructed from a durable, hard-wearing and water resistant Cordura Broken Twill fabric with PU coating and a removable Support Frame
  • Internal extra large main compartment with padded 17" laptop sleeve with integrated zippered stretch mesh cable management pocket.
  • External elasticated net pockets on the sides, Zippered front pockets for essentials, two large water bottle pockets on the rear
  • Extra load strap system - Perfect for oversize jackets or your helmet
  • Padded, quick-release, adjustable shoulder strap with a dedicated mesh side pocket and a rubberized soft carry handle
  • Integrated orange high-visibility, 3M reflective rain cover with a dedicated stash pocket
  • 28 Litre Capacity
  • Front Mounted Only on the Brompton Carrier Block (FCB) - Not Included
  • Compatible with all handlebar types
A BIT ABOUT BROMPTON: If you were to walk into the store and look at a Brompton we would say there are three things you should look for in a folding bike. All of them are fairly obvious. One, the bike should ride well - and, on a small wheeled bike that's tricky because there's a fine line between maneuverability (which is a virtue) and twitchiness (which is a vice). Two, the bike should fold well - otherwise you're blood pressure will rise and you'll curse the day you bought it. Third, it should be transportable, or highly storable - because that's the whole point, right?

Brompton is the only company we've seen that answers all three criteria - and believe us, we've tried every brand out there. The reason others can't compete is because Brompton has answered a fundamental engineering problem. If a bike is going to unfold to a large footprint (which takes the twitch out) then it is unfolding to a bigger bike - and by all logic, a bigger bike unfolded would be a bigger bike folded. So, it's pretty much true that for most folding bikes they either have great rideability but poor transportability or vice versa. And nearly all of them are a mess to fold.

Not Brompton. Brompton has designed the Platonic form of all folding bikes. The bike folds to the smallest size on the market, unfolds in a highly precise and easy manner, and has the same axle-to-axle footprint as a hybrid bike. How did they do this? By not only designing a clever frame, but also designing some 1200 proprietary parts that make everything fit - and fit perfectly. Oh, and nearly all of this is made in England. No wonder this bike has a cult following.


Canada: We use UPS, Purolator, Canpar or Canada Post within Canada. All applicable Provincial Taxes are charged at checkout. Orders may take 1-2 business days to process. A tracking number will be provided by email.

USA: We use UPS or Canada Post/USPS in the USA. No US or Canadian Tax is charged at checkout and all cross-border Fees and Duties are prepaid so there are no surprises. Orders may take 1-2 business days to process. A tracking number will be provided by email.

SKU 9022946

Heavy Duty 1000D Cordura Broken Twill Fabric

1500mm PU Coating

C6 DWR Finish

DIMENSIONS 40cm X 30cm X 20 cm

Roll Top with Buckle-Fastened Flap

Branded Duraflex Hardware 

YKK Zippers with Glove Friendly Zip Pulls

POCKETS Extra Large Main Compartment, Large External Front Zippered Pocket, Large Front Open Pocket, with Extra Load Strap System, One Large Rear Zippered Pocket with Integrated Rain Cover Stash Pocket , One Large Water Bottle Pocket and Two Large Side Mesh Pockets
LAPTOP SLEEVE Internal Padded Sleeve Suitable for 17" Laptops with Integrated Zippered Cable Management Pocket
RAIN COVER High Visibility with 3M Wraparound Reflective Band

Detachable, Adjustable & Padded  Shoulder Strap 

Extra Load Strapping System

Rubberised Webbing Carry Handle

Multiple External Hang-loops

MOUNTING Removable Support Frame (FCF), Front Mounted Only on Brompton Carrier Block (FCB) - Not Included
COMPATIBILITY Low, Mid, and High Handlebars
COLOUR Dark Grey with Light Grey Details

Free Shipping

On all parts & accessory orders over $150.
*exclusions apply

60 Day Returns

Easy Refunds for all returned merchandise

Ships from Canada

Small flat rate duties charge for US customers

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