The 2.0-litre 26B MM was modified with the same road car treatment as the Tipo 26 MM. In 1929 a Weber carburettor replaced the previous Memini and the engine was good for 155 bhp. Top speed claimed at 200 km/h (124 mph).
Works cars were entered in the Mille Miglia, with the teams of Count Aymo Maggi and Ernesto Maserati dropping out in 1928 and Baconin-Borzacchini-Ernesto Maserati retiring 700 km from the start when in the lead of the 1929 race. Four cars were made; among the owners were the Duke of Spoleto as well as gentlemen drivers Diego de Sterlich and Giuseppe Furmanik.
Technical data
| 0-60 mph | |
| Bodywork | aluminium-bodied two-seater sports car |
| Bore and stroke | 62x82 mm |
| Brakes | drum brakes, mechanical |
| Brakes front | |
| Brakes rear | |
| Chassis | ladder frame, with two longitudinal steel girders and cross members |
| Compression ratio | 5.6:1 |
| Cooling system | centrifugal pump |
| Displacements (unitary) | |
| Dry weight | 1,852 lbs (840 kg) |
| Engine | in-line 8 |
| Engine weight | |
| First race | |
| Front Tyres | |
| Front suspension | leaf springs and friction dampers |
| Front track | |
| Fuel & lubricant | |
| Fuel feed | Roots supercharger, two Memini Super carburettors (Weber from 1929) mounted ahead of the supercharger |
| Fuel tank | 21 Imp. gall. (100 litres) |
| Gear ratios | |
| Height | 47.24 in. (1,200 mm) |
| Ignition | single-plug, Bosch or Scintilla magneto |
| Kerb weight | |
| Length | 145.66 in. (3,700 mm) |
| Length-Width-Height | |
| Lubrication | dual oil pumps (pressure and scavenge) |
| Maximum power | 155 bhp at 5,300 rpm |
| Maximum torque | |
| Model | Tipo 26B MM |
| One mile | |
| Production dates | 1928-1929 |
| Production start | 1928 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | leaf springs and friction dampers |
| Rear track | |
| Reduction | |
| Steering | worm gear |
| Timing gear | two valves per cylinder set in a 90°V, twin overhead camshafts |
| Top speed | 124 mph (200 km/h) |
| Total displacement | 1,980.5 cc |
| Transmission | 4-speed + reverse |
| Tyres | front 5.00x18; rear 5.50x18; Dunlop |
| Weight distribution | |
| Wheelbase | 101.57 in. (2,580 mm) |
| Wheels | wire wheels, front 3.00x18, rear 3.25x18 |
| Width | 59.05 in. (1,500 mm) |