Click & Collect or Delivery options available.
Stator + Kokusan Flywheel + Puller Kit (RMS900-103880)
$969.99
Introducing our newest heavy-duty recall-type charging system upgrade kit for Aprilia 2009-2020 RSV4 & 2011-2020 Tuono V4.
Anyone who rides or repairs Aprilia’s motorcycles is probably familiar with the stator, flywheel, and sometimes voltage regulator issues common to these models. Most of these bikes will have had at least one stator fail in their lifetime so far. The main problem was extremely strong magnets were used on the original flywheels, creating a very high power stator output, which generated excessive heat. This usually resulted in burned-up, or shorted stator winding, and often in a failed voltage regulator.
The solution was a new flywheel from Kokusan with lower strength magnets, dropping the stator output and heat generation. This results in a charging system output perfectly matched for the bike’s electronic needs and long-term reliability of the stator and voltage regulator.
To prevent or correct the flywheel problems, our engineers at RMS Labs have come up with a complete reliable heavy-duty charging system replacement kit for your Aprilia. Upgrade today if you haven’t already!
Included in this kit
- Heavy-duty Kokusan brand recall-type OEM flywheel
- Triple-tested heavy-duty stator
- Stator crankcase cover gasket
- Flywheel puller
With this kit, you will be able to upgrade your current failure-prone charging system with a heavy-duty version using the latest technologies
Features:
Kokusan upgrade/recall type flywheel
Lower-strength magnets for correct stator output, low heat generation, and long-term reliability.
Built to OEM size
Fits precisely in your ride: install it and forget it.
Improved epoxy
Uses high-temperature epoxy that is stronger than OEM, eliminating the possibility of magnet detachment
High-grade steel capping
Prevents harsh additives in motor oil from degrading the epoxy attaching the magnets. Though extremely unlikely, if a magnet did ever come loose, it would remain in the sleeve preventing contact with the stator.
Precise balancing
Eliminates crankshaft vibrations for longer engine longevity.
Shop with confidence
All products are tested.
Don't waste time with temporary solutions, and start fixing your ride like a pro!
Stator Dimensions
Interior diameter: 43 mm
Exterior diameter: 105 mm
Thickness: 13.8 mm
Length of wires stator to grommet: 125 mm
Length of wires grommet to plug: 320 mm
Other specifications :
Number of wires: 3
Number of plugs: 1
Number of pins: 3
Wire to wire resistance:
Alternator: Between each Yellow = 0.3 ohms +-20%
Flywheel Dimensions
Exterior Diameter: 121 mm
Interior Diameter: 107 mm
Interior Diameter Center Housing: 19 mm
Exterior Diameter Center Housing: 34 mm
Thickness (exterior): 35.3 mm
Thickness (interior): 31.65 mm
Flywheel Puller Specifications
36 mm x 1.5 right-hand male
Length: 60 mm
Exterior Diameter: 48 mm
Interior Diameter: 35 mm
Exterior Diameter Center Housing: 37 mm
Shipping Once your payment has been confirmed, we make every effort to get your items to you as quickly as possible.
Our items are shipped from our Auckland-based storage facility or our shop, so please allow between 2-4 business days if you are in an urban area, and a little bit longer if you are a rural address.
We use NZCouriers and CourierPost as our shipping companies.
They cannot deliver to PO Boxes, and items must be signed for. If delivering to a company address, please ensure the company name is included in the address details. Please note: items purchased after 2.00pm may not be dispatched until the following business day.
Weekends and all public holidays are not classed as business days. Items purchased on non-business days will be processed on the first available business day.
If you are not 100% happy with your purchase, you can return it within 14 days of receipt for either an exchange, store credit or full refund of the price paid (less any shipping costs). Please adhere to the following conditions for returning your item:
- Items must be in new and saleable condition, with original packaging, labels, tags and all accessories intact
- Product packaging must be wrapped / protected before shipping to avoid damage. Do not stick anything to product packaging
- Items must be undamaged and unused
- Items must be returned freight paid (for your security, we recommend you use a courier that requires signature delivery)
- A note explaining the reason for return/exchange request and your contact details is sent with the item If you have any concerns about your return meeting these conditions, please contact us before sending, thereby avoiding unnecessary courier costs. Exchange Procedure If your original order qualified for freight free delivery, any additional exchanges on the same order will incur a freight charge.
Refund Policy Due to security measures, refunds will be processed back to the credit card or bank account used for the original payment. Refunds will be processed within 5 business days of receipt of the returned item. If an item needs to be returned due to a defect or warranty issue, please make contact with us and we will endeavour to sort it out for you.