TERN
TERN - FlatFold Bag For Small Spaces
TERN - FlatFold Bag For Small Spaces
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FlatFold Bag S · Folded Bike Transport Bag · Bluesign Nylon · Padded · Flat Profile · NBD / 20" Physis Bikes
Tern FlatFold Bag S
A soft padded transport bag for the Tern NBD and compatible 20" Physis handlepost folding bikes — long, flat profile fits in vehicle boots, hallways, and bus compartments, with two pairs of handles and an internal zip pocket for pedals and tools.
The Tern FlatFold Bag S is a soft padded transport bag sized for the folded Tern NBD and other compatible Tern 20" folding bikes with Physis handleposts. The defining characteristic is its flat profile — 1,570 mm long, 730 mm tall, and only 200 mm deep — which matches the flat form of a folded Tern bike and makes it manageable in spaces where a conventional round bike bag would not fit: the boot of a hatchback, under a bus seat, in a building's luggage storage corridor, or standing flat against a wall. Bluesign-certified padded nylon protects the bike from scratches, dirt, and moisture while wicking cleanly. Two pairs of handles — four in total — cover different carrying orientations and allow two people to carry the bag together. An internal zip pocket keeps removed pedals, tools, and accessories contained separately from the bike frame.
Highlights
Flat profile — fits where round bags don't
At 200 mm (8 inches) deep, the FlatFold Bag S is thin enough to stand upright in a boot, slide along a hallway wall, or fit in compartments that don't accommodate a conventional cylindrical bike bag. A folded Tern bike is naturally flat — the bag's profile matches the bike's form rather than adding unnecessary depth. This makes the bagged bike easier to move through doorways, position in vehicles, and store in residential spaces without taking up disproportionate floor area.
Two pairs of handles — four carrying points
At over 1.5 metres long and containing a folded e-bike, the FlatFold Bag S can be heavy and awkward for one person. Two pairs of handles — one at each end, or one on each side — give four distinct carrying points. A second person can take one pair while the first holds the other, distributing the weight across two people for stairs, tight corridors, and vehicle loading. When carrying solo, the two pairs allow switching grip position to distribute fatigue across different muscle groups.
Physis handlepost — what it means for compatibility
The Physis handlepost is a specific handlepost design used on a range of Tern folding bikes including the NBD. When folded, a Physis handlepost collapses flat alongside the frame rather than creating a bulge — this flat fold is what allows the bike to fit the FlatFold Bag S's slim profile. Bikes with a different handlepost design fold to a different shape that may not fit the bag correctly. Confirm your bike uses a Physis handlepost before ordering.
Internal zip pocket — pedals and tools contained
Removed pedals have metal threads and corners that scratch frame paint and componentry when loose inside a bag. The internal zip pocket keeps pedals, multi-tools, a lock, and small accessories separated from the bike's surfaces. Everything that comes off the bike for transport goes into the pocket; nothing rattles against the frame during carrying or vehicle transit.
Bluesign nylon — padded, water-resistant, sustainable
Bluesign certification covers the dyeing and finishing process for the nylon — same certification used in the Cargo Hold pannier fabric. The nylon is water-resistant and easy to wipe clean of mud, grease marks, and road grime. The padding provides scratch protection for the bike inside and gives the bag enough structure to hold its shape without the bike inside — useful for storage when the bike is in use and the bag sits empty.
Ground transport vs airline — what this bag is for
The FlatFold Bag S is a ground transport and storage bag — not an airline travel solution. For airline travel, the FlightSuit ($124) provides padding for a standard suitcase, or the AirPorter Slim ($476) is a dedicated hard-shell airline case. The FlatFold Bag S covers the everyday scenarios: loading the bike into a car, storing it at a venue, protecting it during short-haul rail or bus travel, and keeping it clean in residential storage. It is lighter and less expensive than an airline-specific solution because it doesn't need to meet airline baggage protection standards.
Specifications
| Brand | Tern |
| Model | FlatFold Bag S |
| Type | Soft padded folded bike transport bag |
| Material | Bluesign certified nylon — padded, water-resistant |
| Dimensions | 1,570 × 200 × 730 mm (61.8 × 7.9 × 28.7 in) |
| Weight | ~953g (2.1 lb) |
| Handles | Two pairs — four handles total |
| Internal pocket | Zip pocket — pedals, tools, accessories |
| Handlepost req. | Physis handlepost — required for correct fit |
| Primary use | Ground transport and storage — not airline travel |
| Airline travel | See FlightSuit ($124) or AirPorter Slim ($476) |
| Compatible bikes | Tern NBD · most Tern 20" folding bikes with Physis handlepost — verify with Tern compatibility checker |
Tern FlatFold Bag S · Folded Bike Transport · Bluesign Nylon · Padded · Flat Profile · Physis Handlepost · Size S
- Description
FlatFold Bag S · Folded Bike Transport Bag · Bluesign Nylon · Padded · Flat Profile · NBD / 20" Physis Bikes
Tern FlatFold Bag S
A soft padded transport bag for the Tern NBD and compatible 20" Physis handlepost folding bikes — long, flat profile fits in vehicle boots, hallways, and bus compartments, with two pairs of handles and an internal zip pocket for pedals and tools.
$159 CADPhysis handlepost bikes only — verify fit before ordering. The FlatFold Bag S is designed for Tern folding bikes with Physis handleposts, including the NBD and most Tern 20" folding bikes with this handlepost design. Not all Tern folding bikes use a Physis handlepost — confirm your specific model using Tern's compatibility checker before ordering. Size S — if other sizes exist, verify the S is appropriate for your bike's folded dimensions. Flat 200 mm deep profile 2 pairs of handles — 4 total Bluesign certified nylon
The Tern FlatFold Bag S is a soft padded transport bag sized for the folded Tern NBD and other compatible Tern 20" folding bikes with Physis handleposts. The defining characteristic is its flat profile — 1,570 mm long, 730 mm tall, and only 200 mm deep — which matches the flat form of a folded Tern bike and makes it manageable in spaces where a conventional round bike bag would not fit: the boot of a hatchback, under a bus seat, in a building's luggage storage corridor, or standing flat against a wall. Bluesign-certified padded nylon protects the bike from scratches, dirt, and moisture while wicking cleanly. Two pairs of handles — four in total — cover different carrying orientations and allow two people to carry the bag together. An internal zip pocket keeps removed pedals, tools, and accessories contained separately from the bike frame.
Highlights
Flat profile — fits where round bags don't
At 200 mm (8 inches) deep, the FlatFold Bag S is thin enough to stand upright in a boot, slide along a hallway wall, or fit in compartments that don't accommodate a conventional cylindrical bike bag. A folded Tern bike is naturally flat — the bag's profile matches the bike's form rather than adding unnecessary depth. This makes the bagged bike easier to move through doorways, position in vehicles, and store in residential spaces without taking up disproportionate floor area.
Two pairs of handles — four carrying points
At over 1.5 metres long and containing a folded e-bike, the FlatFold Bag S can be heavy and awkward for one person. Two pairs of handles — one at each end, or one on each side — give four distinct carrying points. A second person can take one pair while the first holds the other, distributing the weight across two people for stairs, tight corridors, and vehicle loading. When carrying solo, the two pairs allow switching grip position to distribute fatigue across different muscle groups.
Physis handlepost — what it means for compatibility
The Physis handlepost is a specific handlepost design used on a range of Tern folding bikes including the NBD. When folded, a Physis handlepost collapses flat alongside the frame rather than creating a bulge — this flat fold is what allows the bike to fit the FlatFold Bag S's slim profile. Bikes with a different handlepost design fold to a different shape that may not fit the bag correctly. Confirm your bike uses a Physis handlepost before ordering.
Internal zip pocket — pedals and tools contained
Removed pedals have metal threads and corners that scratch frame paint and componentry when loose inside a bag. The internal zip pocket keeps pedals, multi-tools, a lock, and small accessories separated from the bike's surfaces. Everything that comes off the bike for transport goes into the pocket; nothing rattles against the frame during carrying or vehicle transit.
Bluesign nylon — padded, water-resistant, sustainable
Bluesign certification covers the dyeing and finishing process for the nylon — same certification used in the Cargo Hold pannier fabric. The nylon is water-resistant and easy to wipe clean of mud, grease marks, and road grime. The padding provides scratch protection for the bike inside and gives the bag enough structure to hold its shape without the bike inside — useful for storage when the bike is in use and the bag sits empty.
Ground transport vs airline — what this bag is for
The FlatFold Bag S is a ground transport and storage bag — not an airline travel solution. For airline travel, the FlightSuit ($124) provides padding for a standard suitcase, or the AirPorter Slim ($476) is a dedicated hard-shell airline case. The FlatFold Bag S covers the everyday scenarios: loading the bike into a car, storing it at a venue, protecting it during short-haul rail or bus travel, and keeping it clean in residential storage. It is lighter and less expensive than an airline-specific solution because it doesn't need to meet airline baggage protection standards.
Specifications
| Brand | Tern |
| Model | FlatFold Bag S |
| Type | Soft padded folded bike transport bag |
| Material | Bluesign certified nylon — padded, water-resistant |
| Dimensions | 1,570 × 200 × 730 mm (61.8 × 7.9 × 28.7 in) |
| Weight | ~953g (2.1 lb) |
| Handles | Two pairs — four handles total |
| Internal pocket | Zip pocket — pedals, tools, accessories |
| Handlepost req. | Physis handlepost — required for correct fit |
| Primary use | Ground transport and storage — not airline travel |
| Airline travel | See FlightSuit ($124) or AirPorter Slim ($476) |
| Compatible bikes | Tern NBD · most Tern 20" folding bikes with Physis handlepost — verify with Tern compatibility checker |
Tern FlatFold Bag S · Folded Bike Transport · Bluesign Nylon · Padded · Flat Profile · Physis Handlepost · Size S
Tern © 2026 FlatFold Bag SShare
Note:
Bikes that are prebuilt in store do not have their stock reflected online. We do our best to ensure that the information on this site is up to date and accurate. However, component changes, and stock changes do occur for various reasons at a fast pace and there may be brief delays on site updates. If there is a product you have questions about contact us at info@powerinmotion.ca or call 403-233-8841 to speak with a representative.