Important Tips:

If there is no front holes on bike, it don't fit your bike, please don't buy it!

If your bike don't have carrier block, please choose the option with carrier block. Otherwise you cannot install this bag. if you don't know it, please contact us before you buy.

This bag fit Original front carrier block (plastic carrier block) and TWTOPSE carrier block. It does not fit other 3rd party aluminum alloy carrier block (some aluminum alloy block use the big size, it will very tight).

1. The "Black 1 Set" "White Gray 1 Setoption: If your bag has the original carrier block(plastic front block),you could choose this option. It fit Brompton, 3SIXTY, PIKES folding bike.

2. The "Black 2 Set" "White Gray 2 Set" option: It fit Brompton, 3SIXTY, PIKES folding bike. The carrier block is 2 holes and PP material.

3. The "Black 3 Set" "White Gray 3 Set" option: it fit Brompton, 3SIXTY, PIKES and fit 3 hole DAHON, 3 Hole Tern, 3 hole Fnhon, 3 hole Crius. The carrier block is universal and alloy material, it fit max 39mm hole distance.

About it:

I am the designer of this bag. At the same time, I am also a enthusiast of folding bikes. this Bag is newest 2022 and It's also my favorite bag so far.  It's a functional city messenger Bag, it design for folding bike. Usually you could use this bag go to shops, daily commute, travel, business trip or go to library. it fit laptop, phone, trolley luggage, digital camera, camera mount, document, notebook, power bank, water bottle, umbrella, bike pump and so on. It's a amazing bag.

1. It's one of folding bike bag series. There is a TWTOPSE folding bike logo on the bag, it's embroidered patterns.

2. Bag frame: It can keep the bag from deforming, even if you put a lot of things in it. Maximum load weight is 15kg.

3. Magic strip: The shoulder straps are attached with a snap for quick release. At the same time, it supports quick adjustment, and it will be very convenient for you to adjust the position. If you are carrying heavy loads, you can use our shoulder strap pads.

4. Medium size 10.5L: approx 40(L)*11(W)*31(H) cm. it fit most of 16" laptop. (Supports laptops up to 37 cm in length and you could measure your laptop to make sure it).  It has an asymmetrical design. Make it more three-dimensional and more comfortable to use at the same time.  

5. Composite fabric: This fabric is more comfortable to the touch than normal nylon fabrics. It is also more durable and easier to clean. It has a waterproof coating on the reverse side for better water resistance.  But it's not waterproof bag because it is made of needlework. you could use the rain cover in rain day.

6. Safeguard your laptop: there is wave bubble pad Inside the bag, It sandwiches the laptop with the sponge cushion, which can protect the laptop well. It also prevents the computer from shaking in the bag.

7. Convenient: This bag can be carried by hand or shoulder or bike.

8. Reflective strips: There are 3 reflective strips. They are on the handle, lid and rain cover respectively. Not only is it stylish but it also protects you in the dark.

Product details:

Brand: TWTOPSE

Name: City Messenger Bag For Brompton

Series: Folding Bike Bag series

Material: Composite fabric

Size: Approx 10.5L

Compatible with Brompton, 3sixty, PIKES and Camp. it also fit front 3 holes DAHON, 3 holes Tern, 3 holes fnhon and 3 holes Crius folding bike.

If there is no front holes on your bike, please don't buy it.

Universal carrier block:

The universal carrier block fit 2 holes and 3 hole folding bike. It fit max 39mm hole distance. please check this size picture.

The buckle of carrier block is a safety buckle, its function is to prevent the bag from falling off, it is not to fix the bag. It uses a little loose design.

We offer 5 pieces screw for alloy carrier block, it fit most of bike. If you need other size screw, you need prepare it by yourself.

This carrier block is little loose design, it fit TWTOPSE brand Bag and most of other brand bags.