Medusa Bikes
412 SERIES HEAVY DUTY SHOCK ABSORBERS 12 INCH BLACK WITH COVERS FOR HARLEY-DAVIDSON DYNA (1991–2017) – PROGRESSIVE SUSPENSION
412 SERIES HEAVY DUTY SHOCK ABSORBERS 12 INCH BLACK WITH COVERS FOR HARLEY-DAVIDSON DYNA (1991–2017) – PROGRESSIVE SUSPENSION
Available
Your legal guarantee rights
Couldn't load pickup availability
⚠️ Note on Approval & Installation: Some offered parts requiring approval or relevant to TÜV do not have TÜV, ABE, EC, or parts certificate approval. If no such approval is stated in the respective product description, these parts are not approved for public road traffic and may need to be registered via individual inspection or are exclusively intended for racing or show purposes. Depending on the vehicle and product, adjustments or additional installation work may also be required. Not all items are plug & play installable.
🔔 Availability: Stock levels may vary in individual cases. Out-of-stock items will, of course, be refunded.
Manufacturer's specifications +
Manufacturer Information
PROGRESSIVE SUSPENSION
13861 Rosecrans Avenue
90670 Santa Fe Springs
UNITED STATES
info@performancemachine.com
Responsible Person in the EU
Parts Europe
Conrad Röntgen-Str. 2
54332 Wasserliesch
GERMANY
sales@partseurope.eu
www.partseurope.eu
Split

Manufacturer - PROGRESSIVE SUSPENSION
Manufacturer Information
PROGRESSIVE SUSPENSION
13861 Rosecrans Avenue
90670 Santa Fe Springs
UNITED STATES
info@performancemachine.com
Responsible Person in the EU
Parts Europe
Conrad Röntgen-Str. 2
54332 Wasserliesch
GERMANY
sales@partseurope.eu
www.partseurope.eu
412 SERIES HEAVY DUTY SHOCK ABSORBERS 12 INCH BLACK WITH COVERS FOR HARLEY-DAVIDSON DYNA (1991–2017)
412 Series progressive suspension rear shock absorbers with the unique part number 412-4046B. This version is 12 inches long, black, and designed for the specified vehicle group.
DETAILS
Double-walled steel shock construction
Nitrogen-filled for consistent damping performance
Multi-stage, speed-dependent damping
Five-way adjustable spring preload via cam adjuster
Progressive spring
Progressive Suspension generally recommends Heavy Duty for rider weights of approximately 250 lb (approx. 113 kg) or more, or for frequent two-up use. The vehicle-specific assignment remains decisive.
COMPATIBILITY
For selected Harley-Davidson Dyna models from 1991 to 2017, including Fat Bob, Low Rider, Street Bob, Super Glide, Switchback, and Wide Glide, depending on the year of manufacture. Check the exact assignment using the model code and part number. Before purchase, also check clearance for the wheel, swingarm, belt/chain guard, and exhaust in the event of a different length.
TECHNICAL DATA
Part number: 412-4046B
Series: 412 Series
Version: HEAVY DUTY
Eye-to-eye length: 12 inches / 304.8 mm
Color/Finish: Black
Covers: Yes
Mounting position: Rear
Quantity supplied: Pair
VARIANTS
No selectable variants.
SCOPE OF DELIVERY
1 pair of Progressive Suspension shock absorbers in the version described.
CERTIFICATION
Progressive Suspension provides TÜV documentation for several shock absorber series. A general ABE approval for this part number is not made. Before use on public roads, check whether 412-4046B and the specific vehicle are covered by the supplied or available documentation; otherwise, clarify the approval with a testing center.
Installation must be carried out by a professional workshop or a qualified person. We assume no liability for damage or malfunctions caused by incorrect or improper installation. Your statutory rights in the event of a product defect remain unaffected.
412 SERIES HEAVY DUTY SHOCK ABSORBERS 12 INCH BLACK WITH COVERS FOR HARLEY-DAVIDSON DYNA (1991–2017)
412 Series progressive suspension rear shock absorbers with the unique part number 412-4046B. This version is 12 inches long, black, and designed for the specified vehicle group.
DETAILS
Double-walled steel shock construction
Nitrogen-filled for consistent damping performance
Multi-stage, speed-dependent damping
Five-way adjustable spring preload via cam adjuster
Progressive spring
Progressive Suspension generally recommends Heavy Duty for rider weights of approximately 250 lb (approx. 113 kg) or more, or for frequent two-up use. The vehicle-specific assignment remains decisive.
COMPATIBILITY
For selected Harley-Davidson Dyna models from 1991 to 2017, including Fat Bob, Low Rider, Street Bob, Super Glide, Switchback, and Wide Glide, depending on the year of manufacture. Check the exact assignment using the model code and part number. Before purchase, also check clearance for the wheel, swingarm, belt/chain guard, and exhaust in the event of a different length.
TECHNICAL DATA
Part number: 412-4046B
Series: 412 Series
Version: HEAVY DUTY
Eye-to-eye length: 12 inches / 304.8 mm
Color/Finish: Black
Covers: Yes
Mounting position: Rear
Quantity supplied: Pair
VARIANTS
No selectable variants.
SCOPE OF DELIVERY
1 pair of Progressive Suspension shock absorbers in the version described.
CERTIFICATION
Progressive Suspension provides TÜV documentation for several shock absorber series. A general ABE approval for this part number is not made. Before use on public roads, check whether 412-4046B and the specific vehicle are covered by the supplied or available documentation; otherwise, clarify the approval with a testing center.
Installation must be carried out by a professional workshop or a qualified person. We assume no liability for damage or malfunctions caused by incorrect or improper installation. Your statutory rights in the event of a product defect remain unaffected.
First-class support
Secure payment
Free shipping in Germany
Premium quality