Radical shift to four-stroke with the RS4 125, based on the Derbi GPR 125 platform. 124.2cc DOHC 4-valve single with electronic fuel injection, 15 hp — natively A1/A2 legal. Considerable reliability gain over the two-stroke, but no ABS.
68
Buyer score / 100
6
Vintages
8
Changes
3
Overhauls
0
Updates
5
Minor
↘ Changes by category
M
ENGINE
1 change
2011
RS4 125 launch: four-stroke 124.2cc DOHC 4-valve, Magneti Marelli EFI — 15 hp at 10,500 rpm, 11 Nm at 8,500 rpm
Major
C
FRAME
1 change
2011
Aluminium perimeter frame, 41 mm inverted fork, rear monoshock, 122 kg dry weight
Major
A
AESTHETICS
6 changes
2011
RSV4-inspired design, aggressive bodywork, digital instrumentation — sold as RS4 125
Major
2012
No notable change — colours carried over
Minor
2013
No notable change — colours carried over
Minor
2014
No notable change — colours carried over
Minor
2015
No notable change — colours carried over
Minor
2016
Final RS4 125 year — model renamed RS 125 for 2017