
S21 RR STI

Displacement 3,5 cc
Stroke 16,90 mm
Bore 16,20 mm
Ports 7
Sleeve ABC
Exhaust Rear
Weight 364 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Alluminium Slide Single Adj.
Plug Type Turbo
Power Comparison 10
S21 CL7B

Displacement 3,5 cc
Stroke 16,90 mm
Bore 16,20 mm
Ports 5+2
Sleeve ABC
Exhaust Rear
Weight 355 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type Die-Cast Aluminium Slide Single Adj.
Plug Type Turbo/Standart
Power Comparison 8
S21 CL7B STI

Displacement 3,5 cc
Stroke 16,90 mm
Bore 16,20 mm
Ports 5+2
Sleeve ABC
Exhaust Rear
Weight 370 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type Die-Cast Aluminium Slide Single Adj.
Plug Type Turbo/Standart
Power Comparison 10
S21 CL7R

Displacement 3,5 cc
Stroke 16,90 mm
Bore 16,20 mm
Ports 7
Sleeve ABC
Exhaust Rear
Weight 364 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Aluminium Slide Single Adj.
Plug Type Turbo
Power Comparison 9,5
S21 CL7R STI

Displacement 3,5 cc
Stroke 16,90 mm
Bore 16,20 mm
Ports 7
Sleeve ABC
Exhaust Rear
Weight 364 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Aluminium Slide Single Adj.
Plug Type Turbo
Power Comparison 10
S24 TXT1R

Displacement 4,0ccm
Stroke 17,10 mm
Bore 17,10 mm
Ports 5
Sleeve ABC
Exhaust Rear
Weight 382 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Aluminium Slide Single Adj.
Plug Type Turbo
Power Comparison 10
SIRIO S21 BXT1R Buggy

Displacement 3,5 cc
Stroke 16,80 mm
Bore 16,22 mm
Ports 5
Sleeve ABC
Exhaust Rear
Weight 370 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Aluminium Slide Single Adj.
Plug Type Turbo
Power Comparison 9
S21 CL3 Sport:

Displacement 3,5 cc
Stroke 16,62 mm
Bore 16,32 mm
Ports 3
Sleeve ABC
Exhaust Rear
Weight 355 g
Crankshaft Ø 14,20 mm SG Type
Carburettor Type CNC Aluminium Slide Single Adj.
Plug Type: Standart
Power Comparison 7




