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Reduction Gearboxes all 3.5cc 
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GB1NA MOCOM 3.5cc gearbox  For Novarossi Keep, Mito, OS21, Picco21 3.5cc with standard 2:1 ratio 17T x 33T.  Complete with CNC machined aluminium body, flywheel/drive gear, lower Mod 1-10mm wide delrin gear, 6mm drive shaft, bearings etc.  
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83.00

GBV2A MOCOM Valvola/Beta21 gearbox complete. This is a new CNC machined aluminium gearbox body with 16mm stainless steel shielded ballraces with oil feed to each bearing. This is a lightweight, perfect design for the Valvola and RSV engine making the engine sit lower in the boat than any other gearbox. Complete with  14T top steel gear and  flywheel, 27T bottom delrin gear, aluminium gear carrier and 10mm wide gears for strength. Can be used as shown with a coupling or with a straight through 5mm shaft.

The rubber mounting holes are in the same position as our old Valvola gearbox and so it can be fitted without changing gearbox mountings 

NOTE. You can specify the gears you want on the gearbox.

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83.00

. 3.5cc  GB1NA and GBV2A GEARBOX SPARES . .
GB17 17 Tooth steel gear, flywheel and cone. suitable for all 3.5cc engines using GB1A gearbox


17.25

GB33 33T delrin gear 6mm bore drilled for gear carrier using GB1NA gearbox

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12.00


GB34 34T delrin gear 6mm bore drilled for gear carrier using GB1NA gearbox

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12.00


GBV14 14 Tooth steel gear, flywheel and cone. suitable for all 3.5cc engines using GBV2A gearbox


19.25

GBV15 15 Tooth steel gear, flywheel and cone. using GBV2A gearbox


19.25
GBV17 17 Tooth steel gear, flywheel and cone. using GBV2A gearbox

no stock
19.25
GBVNUT Special nut for all 3.5cc gearboxes  using GBV2A gearbox

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4.00
GBV26 26T delrin gear 5mm bore drilled for gear carrier using GBV2A gearbox

12.95


GBV27 27T delrin gear 5mm bore drilled for gear carrier using GBV2A gearbox

12.95


GBV28 28T delrin gear 5mm bore drilled for gear carrier using GBV2A gearbox

12.95


GBV29 29T delrin gear 5mm bore drilled for gear carrier using GBV2A gearbox

12.95
GBV31 2 ballraces 5mm id x 16mm od.for the 3.5cc  GBV2A Valvola gearbox

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5.50


GBV32 Hardened mainshaft 5mm diameter  using GBV2A gearbox wpe24.jpg (10702 bytes) 7.00


GBV33 Gear carrier and screws.5mm bore  using GBV2A gearbox

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7.95

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