Twin Power Needle Bearing Advance Unit Kit for Harley-Davidson 70-E78 FL/FX/XL

SKU: TWP215536
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Needle Bearing Advance Unit Kit for Harley-Davidson

Experience enhanced reliability and longevity with the Twin Power Needle Bearing Advance Unit Kit. This premium kit features needle bearings at the advance weight pivot, significantly improving the durability and performance of your ignition system. It's an excellent upgrade for your classic Harley-Davidson, offering smoother operation and extended service life.

Upgrade Your Ignition System:

  • Needle Bearing Design: Incorporates high-quality needle bearings for reduced friction and wear at the pivot points, ensuring consistent advance.
  • Long-Term Reliability: Needle bearings provide superior durability compared to traditional bushings, leading to a longer-lasting advance unit.
  • Direct Replacement: Designed to replace Harley-Davidson part number 32515-85T, ensuring a precise fit for compatible models.
  • Versatile Application: Suitable for 1970-1978 FL and FX models, and 1971-1978 XL models. Can also be used to replace electronic ignition on 1979-2003 XL and Late 1978-1999 Big Twin models.
  • Improved Performance: Ensures accurate ignition timing, contributing to better engine performance, throttle response, and fuel efficiency.

Vehicle Fitment:

This Twin Power Needle Bearing Advance Unit Kit is compatible with a wide range of Harley-Davidson motorcycles:

  • FL/FX Models: 1970-1978
  • XL Models: 1971-1978
  • Electronic Ignition Replacement: 1979-2003 XL and Late 1978-1999 Big Twin

Models include FX Super Glide, FXE Super Glide, FLH Electra Glide, FXS Low Rider, XLCH, XLCR Cafe Racer, and XLT. Verify your specific model and year for exact fitment.

Invest in the longevity and performance of your Harley-Davidson. Choose the Twin Power Needle Bearing Advance Unit Kit for superior quality and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1971-1978 Harley-Davidson FX Super Glide Base
1974-1978 Harley-Davidson FXE Super Glide Base
1977-1978 Harley-Davidson FXS Low Rider Base
1971-1978 Harley-Davidson XLCH Base
1977-1978 Harley-Davidson XLCR Cafe Racer Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Needle Bearing Advance Unit Kit for Harley-Davidson

Experience enhanced reliability and longevity with the Twin Power Needle Bearing Advance Unit Kit. This premium kit features needle bearings at the advance weight pivot, significantly improving the durability and performance of your ignition system. It's an excellent upgrade for your classic Harley-Davidson, offering smoother operation and extended service life.

Upgrade Your Ignition System:

  • Needle Bearing Design: Incorporates high-quality needle bearings for reduced friction and wear at the pivot points, ensuring consistent advance.
  • Long-Term Reliability: Needle bearings provide superior durability compared to traditional bushings, leading to a longer-lasting advance unit.
  • Direct Replacement: Designed to replace Harley-Davidson part number 32515-85T, ensuring a precise fit for compatible models.
  • Versatile Application: Suitable for 1970-1978 FL and FX models, and 1971-1978 XL models. Can also be used to replace electronic ignition on 1979-2003 XL and Late 1978-1999 Big Twin models.
  • Improved Performance: Ensures accurate ignition timing, contributing to better engine performance, throttle response, and fuel efficiency.

Vehicle Fitment:

This Twin Power Needle Bearing Advance Unit Kit is compatible with a wide range of Harley-Davidson motorcycles:

  • FL/FX Models: 1970-1978
  • XL Models: 1971-1978
  • Electronic Ignition Replacement: 1979-2003 XL and Late 1978-1999 Big Twin

Models include FX Super Glide, FXE Super Glide, FLH Electra Glide, FXS Low Rider, XLCH, XLCR Cafe Racer, and XLT. Verify your specific model and year for exact fitment.

Invest in the longevity and performance of your Harley-Davidson. Choose the Twin Power Needle Bearing Advance Unit Kit for superior quality and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1971-1978 Harley-Davidson FX Super Glide Base
1974-1978 Harley-Davidson FXE Super Glide Base
1977-1978 Harley-Davidson FXS Low Rider Base
1971-1978 Harley-Davidson XLCH Base
1977-1978 Harley-Davidson XLCR Cafe Racer Base

Product Details

Product Description

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Twin Power Needle Bearing Advance Unit Kit for Harley-Davidson

Experience enhanced reliability and longevity with the Twin Power Needle Bearing Advance Unit Kit. This premium kit features needle bearings at the advance weight pivot, significantly improving the durability and performance of your ignition system. It's an excellent upgrade for your classic Harley-Davidson, offering smoother operation and extended service life.

Upgrade Your Ignition System:

  • Needle Bearing Design: Incorporates high-quality needle bearings for reduced friction and wear at the pivot points, ensuring consistent advance.
  • Long-Term Reliability: Needle bearings provide superior durability compared to traditional bushings, leading to a longer-lasting advance unit.
  • Direct Replacement: Designed to replace Harley-Davidson part number 32515-85T, ensuring a precise fit for compatible models.
  • Versatile Application: Suitable for 1970-1978 FL and FX models, and 1971-1978 XL models. Can also be used to replace electronic ignition on 1979-2003 XL and Late 1978-1999 Big Twin models.
  • Improved Performance: Ensures accurate ignition timing, contributing to better engine performance, throttle response, and fuel efficiency.

Vehicle Fitment:

This Twin Power Needle Bearing Advance Unit Kit is compatible with a wide range of Harley-Davidson motorcycles:

  • FL/FX Models: 1970-1978
  • XL Models: 1971-1978
  • Electronic Ignition Replacement: 1979-2003 XL and Late 1978-1999 Big Twin

Models include FX Super Glide, FXE Super Glide, FLH Electra Glide, FXS Low Rider, XLCH, XLCR Cafe Racer, and XLT. Verify your specific model and year for exact fitment.

Invest in the longevity and performance of your Harley-Davidson. Choose the Twin Power Needle Bearing Advance Unit Kit for superior quality and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1971-1978 Harley-Davidson FX Super Glide Base
1974-1978 Harley-Davidson FXE Super Glide Base
1977-1978 Harley-Davidson FXS Low Rider Base
1971-1978 Harley-Davidson XLCH Base
1977-1978 Harley-Davidson XLCR Cafe Racer Base

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