Honda Monkey 125 JB02 power kit fitting
For 2018–2020 Monkey 125 models. You buy the kit – we fit it properly.
What we offer
Monkey Bike Repairs now offers a fitting service for power kits on the Honda Monkey 125 JB02 (2018–2020). The same care and attention to detail that goes into our restorations goes into every installation.
- Fitting of the cylinder, piston and associated engine parts supplied with the kit
- Installation of the electronics supplied with the kit (e.g. injection controller and O2 sensor feedback canceller)
- Advice on any additional parts the kit requires before work starts
Fitting price
Labour: [PLACEHOLDER – fitting cost]
Typical time in the workshop: [PLACEHOLDER – hours/days]
Kit and any extra parts are bought separately.


Kitaco 181cc Power Pack Light (Monkey 125 JB02)
A complete 181cc kit that comes with a sensor feedback canceller that must be installed. Manufacturer specification:
- Aluminium casting sleeve cylinder
- Displacement 181cc – bore ø63mm, stroke 57.9mm
- Cast (3R type) piston
- Compression 11.1:1 (stock 9.3:1)
- i-MAP injection controller included
- O2 sensor feedback canceller included
- Requires unleaded premium petrol
- Race use. Kitaco Super Oil Cooler (sold separately) required.
Available from Shire Bikes – £375.00 at the time of writing (check their site for current price and stock).
Buy the kit from Shire Bikes ↗The kit is sold and supplied by Shire Bikes; Monkey Bike Repairs provides the fitting service only. Kitaco lists this kit for race use – please check road legality, insurance and DVLA notification requirements before fitting.
Do you have a bike or engine that needs restoring?
For a bespoke quote, call Cliff on 07903 939229 or send an email.
