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AP Rack Top Bag

AP Rack Top Bag




18 litres



Bag Dimensions

435mm Long x 165mm Wide (Rear) / 130mm Wide (Front) x 400mm High

Seam Type

High Frequency Welded

Fabric Material

Nylon & Hypalon Laminate

Max Load

9kg / 20lbs

Max Laptop Size


Fitting Time

10 seconds or less

* Maximum loads listed for on-road riding. Off-road loads will be lower depending on the severity of the terrain, etc.
** These weights do not include the removable stacking straps (50g) or the removable bag backbone cover (40g)

Media Reviews

Top tip: Try searching for your bike make/model below to find others using this product on your bike.

Customer Reviews

Based on 93 reviews
Caitlin (CA)
Bike: Cervelo c3
Riding Style: Road / Ultra-endurance, Bikepacking, Commuting
Mostly great bag

The good: firmly attached to the rack, no rattling or moving while cycling. Waterproof.

Could be better: needing to undo 4 straps to get into the bag, doesn’t sit well on surfaces other than the rack when you take it off, side pocket doesn’t fit an iPhone.

My bike is small so I’ll probably have to get the longer rack top piece for it to sit better, just haven’t wanted to spend the $$ yet as it’s not cheap to replace! Wish I’d known this before buying the rack so I would’ve gotten the long one but live and learn.

Andy Woodward (SG)
Bike: Sonder Camino
Riding Style: Bikepacking, Commuting, Touring
A Perfect Rig setup

Like many who buy a Tailfin product love it so much they get hooked into the family of Tailfin products. I started with Top Tub Pack large and have to say it's never left the bike. I bought the alloy racks as I want to put my Ortlieb bags on it and it works perfectly . AP20 Trunk Top Bag. So much space in it perfect for storing Al my camping gear and finally a couple of mini panniers for the forks which are perfectly sized and balance the rig perfectly. I'm just waiting a conversion kit for the new mounts for the forks then I can do away with my front rack completely. Thanks Tailfin your awesome....

JohnK (GB)
Bike: Ribble CGR
Riding Style: Bikepacking, Touring, Other
AP20 trunk bag

A great product, securely attaches to rack. Bag is nicely made but can be a little tight under the saddle.
I’ve been looking for additional bag options such as frame packs and handlebar bags. It’s a shame Tailfin haven’t come up with any products yet because there does appear to be an opportunity for them to provide something of comparable quality to the trunk bag.

Hi John,

Thanks for taking the time to provide your great feedback! We do offer the Topstay in a 'Long' version which provides an additional 50mm of clearance for the AP20 Topbag and i've been in touch via email on how to make this change.

All the best,