45mm Primary Offset Kit Bt94 06 5 Speed
Contrary to Evolution models it is not possible to move the transmission on Twin Cam to the left as these models have the transmission bolted to the crankcase. The Zodiac off-set kit enables you to move your primary 12, 25, 45 or 55mm without moving your stock or aftermarket 5 Speed transmission, or 25, 45 or 55mm when you have a 6 Speed Zodiac transmission or conversion. All these kits come with an extended transmission main shaft and extended transmission main drive 5th gear, leaving the transmission housing in exactly the same place but allowing you to offset the front final drive pulley, thus creating space for a wide rear tire. And when we say wide we mean WIDE. The 12mm off-set kit allows the use of a 200 tire with the stock belt in an Evolution or Twin Cam frame, the 25mm offset kit allows a 230 wide tire on a 7.50 rim in both the Evolution and Twin Cam frame if the late type "narrow" final drive belt drive is used. If a chain is used for the final drive the stock frames will accept up to 250 wide tires on a 9.00" rim. The transmission main shaft and drive gear are CNC manufactured from High Stress 20CrMnT gear steel by one of the worlds leading automotive transmission factories. Gear and shaft are tempered and stress released to a core hardness of 35 to 45 Rockwell and have a surface hardness of 58 to 60 Rockwell. Our offset primary kits contain: primary spacer ring, extended crankshaft extension and extended crankshaft nut, extended transmission main shaft, extended main drive 5th gear with needle bearings and seal, extended belt pulley spacer, extended clutch push rod, extended starter jack shaft (only for 25, 45 and 55mm kits), starter jack spacer, primary-to-transmission spacers and all required hardware. The 45mm offset kits come with a 25mm offset maindrive gear and 3/4" (19mm) offset drive pulley. When you have a 1991-1993 model 5 Speed transmission you must order a countershaft 5th gear, extended starter jack shaft bolt and late style final drive pulley separately. Wide swingarm and fender struts must be ordered separately and can be found in this catalog.
Note: The 45mm extended main shaft is used with a 25mm extended main drive gear, a 25mm extended sprocket spacer and a ZPN 193036 offset drive pulley.
The estimated dispatch time is displayed on each product page and depends on the product’s stock location:
- In stock: dispatch within 1–3 business days
- European stock: dispatch within 2–3 business days
- USA stock: estimated dispatch within 3–5 weeks
- Products with a specific lead time: estimated dispatch according to the timeframe displayed on the product page
Once your order has been dispatched, you will receive a confirmation email with tracking information.
Estimated carrier transit times are:
- France: 1–5 business days
- Most European destinations: 5–10 business days
- Countries outside the European Union: delivery times may vary depending on the destination and customs clearance
The dispatch estimate and carrier transit time are separate.
Compatibility
You can verify compatibility in two ways:
- Use the vehicle selector on the product page to check whether the part matches your motorcycle.
- Review the fitment table for the full list of compatible models and years.
Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.
Still unsure? Contact us with:
- motorcycle make and model;
- model year;
- exact version or trim;
- current modifications;
- product reference or link.
Our team will help you confirm compatibility before ordering.
Eligible items may be returned within 30 days of delivery.
To be accepted, the item must be:
- unused and uninstalled;
- in its original condition;
- returned with its original packaging, labels and accessories.
Parts that have been installed, damaged or modified cannot be returned.
Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.
Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.
Customs Duties & Taxes
European Union
Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.
Countries outside the European Union
Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.
Payment Options
We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.
Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.

