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Mafia La Plaga Bomma ST 27.5" Complete Bike - Blue Green
£599.99
La Plaga wanted an accessible bike to help more riders get into bike life. The Bomma La Plaga ST takes the geometry of the alloy 27.5" Bomma and pairs it with a hi-tensile steel frame and a simple single-speed setup built for wheelies.
Integrated peg mounts let you bolt pegs to the dropouts instead of the rear axle. The bike also comes with a La Plaga wheelie seat and pad set, a Shimano hydraulic rear disc brake and wide Lagos Snakeskin tyres for swerving.
Key features
- 27.5" hi-tensile steel frame with integrated peg mounts
- Single-speed drivetrain with 170mm chromoly crank arms
- Shimano hydraulic rear disc brake with 160mm rotor
- 27.5" × 2.5" Lagos Snakeskin tyres
- La Plaga wheelie seat and pad set
- Front brake supplied in the road kit
Specification
| Frame & fork | |
|---|---|
| Frame | La Plaga hi-tensile steel single-speed frame with integrated peg-mount dropouts |
| Fork | Bomma 27.5" |
| Headset | 1 1/8" external, unsealed bearings |
| Cockpit & contact points | |
| Handlebars | Bomma 2-piece, 762mm wide × 168mm high |
| Stem | Mafiabikes 2026 forged topload, 50mm reach |
| Grips | Mafia 2026 Mushroom |
| Saddle | Mafiabikes railed wheelie seat |
| Seatpost | 25.4mm micro-adjust alloy |
| Seat clamp | 28.6mm external quick release |
| Pedals | Mafiabikes plastic |
| Drivetrain | |
| Crank arms | 170mm heat-treated 4130 chromoly |
| Crank axle | 19mm, 8-spline |
| Bottom bracket | Sealed Mid BB |
| Front sprocket | 32t steel, BMX fitment |
| Rear freewheel | 15t, M30 × 1mm thread |
| Wheels & tyres | |
| Rims | Mafia 2026 wide low-profile double-wall alloy, 27.5", 30mm wide, 36-hole front and rear |
| Front hub | Alloy shell, 3/8" axle, sealed bearings |
| Rear hub | Alloy shell, 3/8" axle, threaded freewheel, sealed bearings, disc compatible |
| Tyres | Lagos Snakeskin “S” Super Soft Compound, 27.5" × 2.5" front and rear |
| Brakes & fitment | |
| Rear brake | Shimano hydraulic disc brake, 160mm rotor |
| Front brake | Side-pull cable brake supplied in the road kit |
| Front hub spacing | 100mm |
| Rear hub spacing | 135mm |
| Maximum rear tyre width | 66mm / 2.6" |
| Road kit | Included |
| Listed weight | 35lb / approximately 15.9kg |
Geometry
| Top tube length | 589.5mm |
| Head tube length | 105mm |
| Standover | 744mm |
| Stack height | 554mm |
| Bottom bracket height | 11.6" |
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