BTR Waterproof Bicycle Rear Rack Pannier Bike Bag

68 reviews
Same day shipping on orders placed Mon-Fri by 1pm

8L Water resistant bike rack bag by BTR is an easy way of storing & your gear on the back of your bike & keeping it safe & dry.

We designed this bag to be a robust, secure & practical way of adding a extra storage to your bicycle. So we added:


  1. Extra straps, so you have x 5 strap fittings for max attachment. 2 x fastening straps at the front & 3 underneath attach & adjust under your bike rack easily
  2. Built in rear light loop to affix your tail light


Other Features:


  • Water resistant wipe clean material – helps keep your belongings dry & your bag looking good
  • Waterproof zips – they are tough, so they don’t let drips in!
  • Rear light loop– clip your tail light on the built-in loop, it’s essential! No need to compromise your visibility for storage!
  • 5 x hook & loop fastening straps – easy to attach & remove
  • Highly reflective silver tape – sewn, not printed on the side
  • Detachable shoulder strap & fixed carry handle – creates an instant mini go bag, take your valuables with you
  • 2-way zipped lid – access your essentials easily
  • 8 Litre Capacity – including 3 x external pockets
  • 3 x external pockets – organise your items & the waterproof zips help keep the drips out
  • 1 x internal pouch - to keep your contents organised
  • Bungee straps across the top – adds extra storage if you need it
  • Option to purchase with a waterproof rain cover & cargo net – to create a 100% waterproof bag & aid extra attachment
  • Bag Size = Height 13.5cms, Width 16.5cms, Length 36cms


This truck style pannier bicycle bag is compact yet has an 8 Litre capacity (including pockets) and allows you to carry your essentials with you

Delivery Information

FREE Postage -  Usually Receive within 2-5 Working Days.  

£2.00 - Receive item within 1-2 days


FREE UK Returns

We offer free returns within 28 days of purchase. (See Christmas Returns Below)

We offer Free Returns through Royal Mail. Please Contact Us to arrange your return


Christmas Returns

Anything purchased after November 1st 2021 for Christmas can be returned up until 21 January 2022



All items must be unused and still have the tags attached when they are returned to be eligible for this policy



BR rear rack bicycle pannier bag on bicycle in fieldBTR rear rack bicycle pannier bag fitted on bicycle with lovely countryside view

BTR bike rear rack bicycle pannier bag attached to a  Mate X electric bike

BTR rear rack pannier bike bag attached to excsmo fold up bicycleBTR rear rack bicycle bag on bike rack of ladies bicycle

BTR rear rack bicycle pannier bike bag on bicycle side on in country laneBTR rear rack bicycle pannier bag on bike with handlebar phone bike bag

BTR rack pannier bike bags fitted to Wisper 806 Folding bikesBTR rear rack bike bag on bicycle in a garageBTR bicycle pannier bike rack bag on a bike in a garageBTR rear rack bicycle bike pannier bag displayed on a Haibike

BTR pannier rear rack bicycle bag fitted to a bike

BTR rear rack pannier bike bag on rear rack on ladies bicycleBTR Sports rear rack bike bag shown on an ebike from a customer

BTR rear rack bicycle pannier bike bags attached to bikes

Customer Reviews
4.9 Based on 68 reviews
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Elizabeth H.
United Kingdom United Kingdom
I recommend this product

Nifty little bag!

Very happy with this product. It's a perfect size for everything I need to carry on a leisure ride: water, phone, OS map, D lock, etc etc, with several useful small pockets for things like keys. The base and sides are quite rigid so even when it's almost empty it holds its shape and stays firmly attached. The waterproof cover is also very useful, but not sure yet if I'll use the extra net. It's a little bit fiddly to get the bag on and off the rack, but I just use the front and rear straps - not the middle ones - and that's quite enough. Love using it!

Nigel D.
United Kingdom United Kingdom
I recommend this product

Bike storage bag

Found the storage bag of excellent quality, compatible with more expensive bike bags . Very pleased with my purchase.

BTR Direct Sports BTR Waterproof Bicycle Rear Rack Pannier Bike Bag Review
John C.
United Kingdom United Kingdom
I recommend this product

Rack pack

Excellent product with better features than similiar items for over double the price. Lots of useful openings & places to stash items. Straps are well placed & suitable for all racks (I used this with a Tubus carrier). No rattling or movement of the bag whilst in use.

United Kingdom United Kingdom
I recommend this product

Great bag, but main zip has failed after 2 years

This is a great carrier bag, Attaches simply and securely and large enough to hold enough tools, spare clothing and supplies for a day out. The only downside is the main zip has completely failed after 2 years of once a week use. I've just ordered another.

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