Parts index


We stock over 33 Crankshaft spares

MRB have led the way in improving the Lambretta crankshaft. From pioneering the use of Japanese rods and big end bearings through to launching the range of MB Alpha crankshafts.


Showing parts 1 - 32 of 32

20   |  40   |  ALL   |

Sort by:


Bearing, flywheel, Li, Sx, Tv, Gp 125, 150, 175, hi load
MBB0009

A high quality flywheel bearing to suit all non-GP200 crankshafts.    It fits Li, SX, TV crankshafts... [more]


£ 46.40£ 38.67 (Ex Vat)
Bearing, flywheel, Gp200, high load
MBB0010

A high quality, high load flywheel bearing to suit all GP200 crankshafts, road or race.    Please note our bearings will be either FAG / SKF/... [more]


£ 45.01£ 37.51 (Ex Vat)
Bearing, drive side, standard
MBB0030

A high quality standard drive bearing to suit all Series 1, 2 and 3 engine casings.... [more]


£ 18.40£ 15.33 (Ex Vat)
Bearing, drive side, road / race touring type with extra seal
MBB0031

A high quality Touring Road drive bearing to suit all Series 1, 2 and 3 engine casings.    MRB were the first to introduce this single... [more]


£ 22.73£ 18.94 (Ex Vat)
Seal, small mag
MBB0076

A high quality small magneto or flywheel seal.    Fits all Series 2 and 3 magneto housings but not Series 1 models.    It's worth changing the large... [more]


£ 3.31£ 2.76 (Ex Vat)
Circlip, 52mm internal, for magneto housings
MBFINT52SC

Amongst many applications this fastener can specifically be used to secure the large magneto seal into the magneto housing.... [more]


£ 1.21£ 1.01 (Ex Vat)
Magneto housing retaining L shape spacer
MBL0305

This L shaped washer sits inside your magneto housing and holds one of the oil seals in place.... [more]


£ 4.50£ 3.75 (Ex Vat)
Crankshaft woodruff key
MBL0526

This woodruff key is used to line up the flywheel when you fit the flywheel to the crank.   Contrary to popular belief it does... [more]


£ 0.79£ 0.66 (Ex Vat)
Shim, crank 22 x 0.5mm, each
MBL0735

A well designed Lambretta race crankshaft should use big end shims for reliability.  This is a 0.5mm big end shim for 22mm crank pins.... [more]


£ 4.93£ 4.11 (Ex Vat)
Shim, crank 22 x 1mm, each
MBL0736

A well designed Lambretta race crankshaft should use big end shims for reliability.    This is a 1.0mm big end shim for 22mm crank pins.    These could... [more]


£ 5.56£ 4.63 (Ex Vat)
Bearing, big end, 28mm OD, 28 x 22 x 16mm Yamaha
MBL0737

This high quality silver plated big end bearing which can be fitted to cranks that use the Yamaha 110mm and 115mm con rods.  This excellent... [more]


£ 33.20£ 27.67 (Ex Vat)
Con rod, Yamaha, 110 x 16mm
MBL0739

This con rod is mostly used to upgrade the crank for use in high power TS1 engine.  It is 3mm longer than a standard rod... [more]


£ 35.10£ 29.25 (Ex Vat)
Con rod, Yamaha, 115 x 16mm
MBL0740

This con rod is mostly used to convert the crank for some popular Japanese piston conversions like the: Suzuki 190 (the... [more]


£ 38.22£ 31.85 (Ex Vat)
Gasket, drive side halite, MB
MBL1358

Made for us to original designs this is a drive plate halite gasket.    It fits between the drive bearing and casing and the drive side... [more]


£ 1.21£ 1.01 (Ex Vat)
Lambretta drive side plate, steel, MB
MBP0085

Alloy drive side seal plates are much lighter than steel plates but do tend warp.    Our steel plate are redesigned by Mark Broadhurst so the... [more]


£ 14.88£ 12.40 (Ex Vat)
Lambretta drive side plate, alloy
MBL0907

This is an alloy SIL Indian drive side seal plate.  Although we have made our own steel drive side seal plates we still stock these... [more]


£ 4.10£ 3.42 (Ex Vat)
Drive side, high tensile allen screw kit
MBP0210K

If you've ever taken apart a Lambretta engine you will have struggled to undo the 4 screws that hold the drive side seal plate... [more]


£ 1.39£ 1.16 (Ex Vat)
Crankshaft, 58 x 107mm Li, Sx, Tv with small end bearing, Italian
MBL0115

This is a replacement Li type crankshaft suitable for: Li125, 150 Series 1, 2, 3 Sx125, 150 ... [more]


£ 185.22£ 154.35 (Ex Vat)
Flywheel nut and washer, Gp
MBL1281K

Gp flywheel nut and washer bought as a  set.... [more]


£ 7.86£ 6.55 (Ex Vat)
Crankshaft and Layshaft spacer shim, 25mm ID, 1.0mm, MB
MRB0619M10

This is a special crank shim to fit on the crankshaft between the crank and drive bearing, it will space the crank away... [more]


£ 1.84£ 1.53 (Ex Vat)
Crankpin, Lambretta 22 x 22 x 22, Super oversize, MB
MRB0822

Lambretta crank pin to suit most of the latest Lambretta GP crankshafts with a 22mm crank pin hole to tighten cranks up on... [more]


£ 49.68£ 41.40 (Ex Vat)
Crankpin, Lambretta 22 x 22 x 22, MB
MRB0821

Lambretta crank pin to suit most of the latest Lambretta GP crankshafts with a 22mm crank pin hole to tighten cranks up on assembly.    These... [more]


£ 49.68£ 41.40 (Ex Vat)
Crankshaft and Layshaft spacer shim, 25mm ID, 0.5mm, MB
MRB0619M05

This is a special crank shim to fit on the crankshaft between the crank and drive bearing, it will space the crank away... [more]


£ 1.84£ 1.53 (Ex Vat)
Crankshaft and layshaft spacer shim 1.5mm, MB
MRB0619M15

This is a special crank shim to fit on the crankshaft between the crank and drive bearing, it will space the crank away... [more]


£ 1.84£ 1.53 (Ex Vat)
GP Crankshaft 60mm 110mm Black webs, copper rod, MEC
MBL1622

Italian GP crankshaft with 110mm con rod,  Ideal for MBGM Race-Tour kits 195 and 225 to take them up to 200cc and 230cc .    Please... [more]


£ 126.72£ 105.60 (Ex Vat)