BTR Waterproof Bicycle Rear Rack Pannier Bike Bag

37 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 - Royal Mail 48 - Usually Receive within 2-4 Working Days

£1.00 Postage -  Royal Mail 24 - Usually Receive within 1-3 Working Days

£2.50 Postage - Royal Mail TRACKED 24 - Usually Receive within 1- 2 Working Days


FREE UK Returns

We offer free returns within 28 days of purchase. 

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



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

Customer Reviews
4.8 Based on 37 reviews
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Filter Reviews:
Peter B.
United Kingdom United Kingdom
I recommend this product
Cycle Rack Bag

Have fitted bag back to front, to make more secure on rack. Fits well. Works well. Excellent value. Great Service. One star deducted - due to omission of waterproof cover and elasticated web. This was quickly remedied upon reminder.

Chris P.
United Kingdom United Kingdom
I recommend this product
An excellent product

The Rear Rack Pannier Bike Bag is excellent, was easy to attach to my rack and seems to be held in place very well. It's just the right size. Haven't been out in the rain yet but it looks like it will withstand a fair wetting!

Beth D.
United Kingdom United Kingdom
I recommend this product
Great Value

I am delighted with my purchase. It arrived when scheduled and was easy to attach to my bike. It’s great quality and very sturdy and the detachable strap is great as well. Very happy indeed

Ken B.
United Kingdom United Kingdom
I recommend this product
Saddle bag

Has not been used used as yet. Been fitted to the rack and looks good, seems a good quality bag