Brompton
Brompton T Line - 12 Speed
Brompton T Line - 12 Speed
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Brompton Custom Shop
Want it built your way?
Cerakote colors, lighter wheels, different gearing, saddles, lighting — designed with you and built here in Portland.
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Details That Matter
Is This Your Bike? Read On.
Pure Brompton
Details That Matter
Is This Your Bike? Read On.
Pure Brompton
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Description
Brompton T Line 12-Speed Folding Bike
Experience unmatched versatility with the Brompton T Line 12-Speed Folding Bike. Designed for urban explorers and city commuters alike, this bike offers the perfect blend of performance, portability, and style.
- Advanced 12-Speed Gear System: Tackle any terrain with ease, from steep hills to flat city streets, thanks to the wide-ranging 12-speed drivetrain.
- Ultra-Compact Folding: Fold and unfold in seconds for effortless storage and portability. Ideal for tight living spaces and on-the-go lifestyles.
- Featherweight Frame: Constructed with state-of-the-art materials, the T Line is remarkably lightweight without sacrificing durability or strength.
- Superior Ride Quality: Enjoy a smooth, responsive ride with precision engineering and top-quality components tailored for urban environments.
- Customizable Options: Personalize your ride with a variety of accessories designed to enhance functionality and style.
-
Urban Ready: Navigate crowded streets and narrow alleys with ease, thanks to the bike's agile handling and compact design.
Side Effects
Bike Facts
Serving size Carries up to 1 person
| Amount per ride | |
|---|---|
| Joy | 100% |
| Bike Details | |
| Frame Material | Titanium |
| Brakes | Brompton Dual Pivot Caliper Rim Brakes |
| Tires | Schwalbe ONE Black w/ Addix race compound & v-guard puncture protection |
| Number of Gears | 12 |
| Rider Height | Standard: 4'7" – 6'2" Extended: 4'7" – 6'5" Telescopic: 4'7" – 6'8" |
| Weight | Approximately 19.4 lbs |
| Suspension | Brompton specific |
| Max Load (lbs) | 242 |
| Included Accessories | Fenders Bell |
| Maintenance Requirements | Medium |
| Folded Size | 25.3" × 23" × 12.6" |
* Best consumed daily for optimal joy. Pairs perfectly with laughter and good company.
Size Information
How Do I Know Which Size Brompton I Need?
Every 16″ wheel Brompton — C Line, P Line, and T Line — uses the same one-size frame. Your fit comes down to two choices: handlebar type and seatpost length. Between those two, a Brompton fits riders from 4′10″ to 6′4″.
Short on time? Mid handlebar + Standard seatpost works for most riders between 5′4″ and 5′11″. It's now the default on every new Brompton — and it's the default for a reason.
Handlebar Types
The handlebar determines your riding posture. All three fit the same frame — only the bar shape and stem height differ.
| Type | Riding Position | Best For |
|---|---|---|
| Low | Sporty, forward-leaning | Shorter riders wanting a natural position, or taller riders who like an aggressive, road-bike feel |
| Mid | Neutral, comfortable | Most riders — good visibility, easy on the wrists, great all-rounder |
| High | Upright, relaxed | Taller riders, or anyone who prefers a Dutch-bike feel with minimal wrist pressure |
Low — A flat, straight bar that sits about 3.5″ lower than the Mid. This is the lightest and most responsive option. If you're under 5′6″, it feels like a normal upright ride. If you're taller, expect a sportier tuck. One thing to note: only the Brompton S-Bag front luggage works with the Low bar.
Mid — Brompton's most popular handlebar. A curved riser bar that puts you in a comfortable, slightly upright position with great traffic visibility. If you're not sure which to pick, this is the safe choice.
High — The same bar shape as the Mid, just on a taller stem — about 2″ higher. Most of your weight sits on the saddle instead of your hands, which is easier on wrists and shoulders over longer rides. Riders under 5′5″ may find this position feels too upright.
Seatpost Options
The seatpost sets your saddle height. Getting this right matters — proper leg extension means comfortable, efficient pedaling and less strain on your knees.
| Seatpost | Inseam Range | Notes |
|---|---|---|
| Standard | 26″ – 33″ | Most compact fold — sits flush, fits all travel cases |
| Extended | 33″ – 35″ | Adds about 2.5″ of height; saddle sits higher when folded |
| Telescopic | 27″ – 39″ | Up to 7″ extra height, only 1″ taller when folded — great for tall riders and shared bikes |
How to Measure Your Inseam
Stand barefoot against a wall, feet about 6″ apart. Place a hardcover book between your legs, spine up, snug against your body. Measure from the top of the book spine to the floor. That number is your cycling inseam.
Brompton Shipping Information
Warranty
UPC / Part Numbers
| Option | SKU | UPC |
|---|---|---|
| Blasted Titanium / Low | SLL099B0CBT2RQ00T0050T20999B00 | — |
| Blasted Titanium / Mid | 210000022640 | — |
Dearly Beloved
