Compare OO Class 121 'Bubble Car'
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| Manufacturer | Lima | Lima | Dapol | Bachmann Branchline |
| Year model introduced | 1998 | 2006 | 2018 | 2020 |
| DCC Capability | DCC compatible but no socket. Pancake motor | DCC Ready. 8-pin socket | DCC Ready. 21-pin socket | DCC Ready. PLuX22 socket |
| Bodyshell | ||||
| Bodyshells represented (of Prototypes) | ||||
| DMU - roof mounted headcode box |
Yes |
No | No | No |
| Detailing | ||||
| Bodyshell - factory-fitted separate details | ||||
| Door handles | No | No |
Yes |
Yes |
| Exhausts |
Yes |
Yes |
Yes |
Yes |
| Handrails | No | No |
Yes |
Yes |
| Lamp irons | No | No |
Yes |
Yes |
| Chassis/underframe detail | ||||
| Battery box |
Yes |
Yes |
Yes |
Yes |
| Driveshafts (cosmetic) | No | No |
Yes |
Yes |
| Engine |
Yes |
Yes |
Yes |
Yes |
| Engine pipework |
Yes |
Yes |
Yes |
Yes |
| Footsteps | No | No |
Yes |
Yes |
| Fuel tank |
Yes |
Yes |
Yes |
Yes |
| Sanding gear | No | No | No |
Yes |
| Speedometer cable | No | No |
Yes |
Yes |
| Cab, footplate & interior detail | ||||
| Detailed |
Yes |
Yes |
No | No |
| Detailed & painted | No | No |
Yes |
Yes |
| Detailed guards compartment | No | No | No |
Yes |
| Glazing |
Yes |
Yes |
Yes |
Yes |
| Seating |
Yes |
Yes |
Yes |
Yes |
| Window wipers |
Yes |
Yes |
Yes |
Yes |
| Wheel "aesthetics" | ||||
| Chemically-blackened | No | No |
Yes |
Yes |
| Painted | No | No | No |
Yes |
| Traction tyres |
Yes |
Yes |
No | No |
| Bufferbeam detail (pre-fitted) | ||||
| Cosmetic coupling - hook only |
Yes |
Yes |
No | No |
| Sprung buffers | No | No |
Yes |
No |
| Bufferbeam detail (in detailing pack) | ||||
| Cosmetic coupling | No | No |
Yes |
Yes |
| Cosmetic Screwlink couplings | No | No | No |
Yes |
| Jumper cables | No | No |
Yes |
Yes |
| Pipework (for front) | No | No |
Yes |
Yes |
| Pipework (for rear) | No | No |
Yes |
Yes |
| Detail pack also contains... | ||||
| Decal sheet | No | No |
Yes |
No |
| Mechanical | ||||
| Body Construction |
Plastic |
Plastic |
Plastic with metal parts |
Plastic with metal parts |
| Chassis construction |
Lightweight |
Lightweight |
Diecast |
Diecast |
| Loco-driven wheels (number of) |
4 wheels |
4 wheels |
8 wheels |
4 wheels |
| Minimum radius |
Radius 2 |
Radius 2 |
Radius 2 |
Radius 2 |
| Coupling socket/mounting | ||||
| Fixed |
Yes |
Yes |
No | No |
| NEM pockets | No |
Yes |
Yes |
Yes |
| Coupling type |
Tension lock |
Tension lock |
Tension lock |
Tension lock |
| Weighting (to assist adhesion) | ||||
| Within chassis |
Yes |
Yes |
Yes |
Yes |
| Separating the body from the chassis |
Body clips off from chassis |
Body clips off from chassis |
Use plastic card (credit card format ideal) to slide between lower body and chassis, then undo lugs |
Body clips off from chassis |
| Electrical | ||||
| Motor type |
Pancake |
5-pole (standard) |
5-pole supercreep with 2 flywheels |
3-pole with flywheel |
| Motor location |
1 bogie mounted |
1 bogie mounted |
Centre of chassis |
Centre of chassis |
| Power collection |
2 rail DC |
2 rail DC |
2 rail DC |
2 rail DC |
| Working lights | ||||
| Cab light | No | No |
Yes |
Yes |
| Directional headlights & tail lights | No | No |
Yes |
Yes |
| Headlights (independent) | No | No |
Yes |
Yes |
| Illuminated headcodes | No | No |
Yes |
No |
| Interior lighting | No | No |
Yes |
Yes |
| Tail lights (independent) | No | No |
Yes |
Yes |
| Pickups |
2 out of 4 axles |
2 out of 4 axles |
All wheels |
All wheels |
| DCC speaker |
No provision for speaker |
Provision for 28mm round speaker |
Provision for a 22x58mm rectangular speaker |
Pre-fitted |
| Items in Stock | View | View | View | View |