This Biker’s Choice lower fork bushing set (RPLS45866-84) is designed for Harley-Davidson models equipped with 41mm front forks. These bushings are critical for maintaining proper fork alignment, reducing friction, and ensuring smooth suspension performance.
Manufactured to meet or exceed OEM specifications, these bushings are ideal for fork rebuilds, maintenance, or restoring ride quality on a wide range of Harley models. Built for durability, they help minimize wear between fork tubes and sliders.
This listing is for the lower fork slider bushings and is commonly paired with upper bushings (OEM #45940-84) during full fork service.
Features:
Brand: Biker’s Choice
Part Number: RPLS45866-84
Replaces OEM: 45866-84
Fork Size: 41mm
Type: Lower fork slider bushings
Width: Approx. 0.778”
Improves fork stability and smooth operation
Reduces friction and wear
Durable construction for long service life
Sold as a set
Fitment:
Harley-Davidson Models with 41mm Fork Tubes:
Softail Models:
1984–2017 Softail Standard, Custom, Heritage, Fat Boy, Slim
Touring Models (FLT):
1984–2013 Electra Glide, Road King, Tour Glide
Dyna Models:
1993–2005 FXDWG Wide Glide
FXWG Models:
1984–1986 FXWG Wide Glide
Note:
Designed for models with 41mm fork tubes only. For complete fork service, upper bushings (OEM #45940-84) are typically replaced at the same time. Always verify fork size before purchasing.
This listing is for a Progressive Suspension Monotube Fork Cartridge Kit – Lowering model #31-2501, offered for parts only. The kit is incomplete and ideal for replacement components, rebuilds, or anyone needing spare parts for an existing monotube setup.
These kits are designed to deliver superior front-end control and performance compared to conventional fork setups, but please note this set is not complete and not ready for installation.
📌 Product Details:
Brand: Progressive Suspension
Model: 31-2501
Type: Monotube Fork Cartridge Kit (Lowering)
Fitment: Designed for Harley-Davidson models (verify part number 31-2501 for your exact application)
Condition: For parts only – incomplete kit
✅ Features (from complete version for reference):
Improved damping and handling over stock forks
Monotube design provides consistent performance
Designed for easy installation when complete
Includes both damping and spring control (missing components may vary)
📎 Condition Notes:
Incomplete kit – for parts or rebuild use only
May include some usable internal and external components
Check photos for exact included items
Sold as-is, no returns due to incomplete nature
This genuine Harley-Davidson NOS 39mm fork dust seal (part number 45401-87) is designed for Sportster XL and FXR motorcycle applications. The dust seal helps protect fork oil seals and internal suspension components from dirt, debris, and moisture while maintaining proper front suspension performance. OEM Harley fork dust seals are commonly used during front fork rebuilds and restoration projects.
Ideal for vintage Harley restorations, fork maintenance, or replacing worn original fork dust seals.
Features:Genuine Harley-Davidson OEM partPart Number: 45401-87Type: Fork dust sealFits 39mm front forksHelps protect fork seals and bushingsOEM Harley fit and finishIdeal for fork rebuilds and restoration projects
Fitment:
Harley-Davidson Models:
Sportster XL Models with 39mm forksFXR Models with 39mm forks
Common applications include:XLH883XLH1200FXRSFXLRFXRT
1987-later Sportster applications and select FXR models.
(Verify exact year and fork size before purchasing)
Condition:NOS (New Old Stock)
May show light shelf wear from long-term storage. Please review photos carefully for exact condition.
Notes:Sold individually unless otherwise notedFront fork suspension componentProfessional installation recommended
New aftermarket fork seals designed for Kawasaki and Suzuki small displacement motorcycles. High-quality replacement seals help restore suspension performance, prevent oil leaks, and extend fork life.
Condition: New
Type: Fork Seals
📌 Fitment (verify before purchase):
Kawasaki KX60
Kawasaki KDX80
Kawasaki KLT110
Kawasaki KLX110
Suzuki RM60
Suzuki DR-Z110
Features:
Precision fit for listed models
Protects against oil leaks and dirt intrusion
Durable construction for long-lasting performance
Easy direct replacement for worn fork seals
The K&L 15-5083 Fork Seals, measuring 41x53x8/10.5mm, are premium-quality, Japanese-made replacements designed to meet or exceed OEM specifications. These seals are ideal for restoring the front suspension performance of various motorcycles from Kawasaki, Yamaha, Suzuki, and more.
Compatible Models Include:
Kawasaki:
Ninja 650 (EX650) – 2006–2022
ER-6n (ER650) – 2006–2016
Z650 (ER650) – 2017–2023
Vulcan S (EN650) – 2015–2023
KLR650 – 2009–2023
W800 (EJ800) – 2020–2023
Yamaha:
FZ6R – 2009–2017
Suzuki:
SV650 – 2003–2012
These fork seals are crafted to provide a reliable, leak-free solution, ensuring optimal suspension performance for your motorcycle.
The K&L 15-5079 Fork Seals, measuring 41x53x8/10.5mm, are premium-quality, Japanese-made replacements designed to meet or exceed OEM specifications. These seals are ideal for restoring the front suspension performance of various Honda, Kawasaki, and Suzuki motorcycles.
Compatible Models Include:
Honda:
CBR600RR – 2003–2011
Shadow Sabre 1100 (VT1100C2) – 2000–2007
Kawasaki:
Ninja 650R (EX650C) – 2006–2011
ER-6n – 2009–2010
Suzuki:
SV650 – 2003–2011
These fork seals are crafted to provide a reliable, leak-free solution, ensuring optimal suspension performance for your motorcycle.
This fork seal has dimensions of 35x48x8/9.5 mm, which are compatible with several motorcycle models. This seal size is commonly used in various Yamaha models, including:
Yamaha XJ550R Seca (1981–1983)
Yamaha XZ550R Vision (1982–1983)
Yamaha XT250 (2008–2024)
Yamaha SR400 (2015–2017)
Yamaha TZ250 (1979)
Additionally, this fork seal size fits other models such as the Suzuki GN400 (1980–1982), Suzuki RG250F (1986–1988), and Kawasaki KR250 (1985–1986).
Please note that this front end is a hybrid configuration layout: the lower triple clamp bracket (the black piece situated beneath the steering stem pin) has been updated with a genuine black factory Harley Softail lower triple tree bracket engineered for 2001-later chassis configurations. This specific clamp modification was precisely executed to allow the front end to cleanly clear and run full-coverage upper fork tube covers (tins).
Please note that this used core assembly displays standard warehouse handling patina, localized surface oxidation on the raw steel neck pin, and normal storage weathering—making it an exceptional custom project core ready for custom chopper mockups, media-blasting, or fresh fluid seals. Please note that this sale is strictly for exactly ONE (1) individual standalone hybrid front fork and triple tree assembly as pictured.
Harley-Davidson (Custom Chopper / Hybrid Bagger Platforms)
Designed for custom application on vintage Chopper, Bobber, or custom rigid frames utilizing standard 1-inch neck stem steering bearing configurations.
Component Origin Breakdown:
Fork Tubes & Lower Sliders: Genuine factory Harley-Davidson OEM 41mm Wide Glide / FL style telescopic front end architecture.
Lower Triple Clamp (Black Section): 2001-later Harley-Davidson Softail (FXST / FLST series matching standard weight/width offsets configured to run upper fork tins).
Front Axle: Matching OEM 41mm wide-glide structural axle assembly.
High-utility metric hardware sized precisely to replicate original equipment layouts for legendary high-displacement street motorcycles, cruisers, and heavy sport-touring machines. This 6008-2RS bearing serves as a prominent high-volume fitment across standard front/rear wheel hubs, final drive sprocket carriers, and engine transmission clutch baskets:
Yamaha Sport & Street Motorcycles: Rear Wheel Hub & Clutch Base Support for YZF-R1 (1998–2003) and FZ1 (2001–2005) series.
Honda Heavy Cruisers & Touring: Front / Rear Wheel Hub & Final Drive Carrier Core for GL1800 Goldwing (2001–2017) and VTX1800 models.
Suzuki Street & Sport Models: Rear Wheel Hub Center Hub Cushion and Sprocket Drum Carrier for GSX-R1000 and Hayabusa GSX1300R configurations.
Industrial & Custom Applications: Fits any standard 40mm x 68mm x 15mm bearing pocket across custom choppers, agricultural pulley setups, large electric motors, and water craft driveshafts.
High-utility metric hardware sized precisely to replicate original equipment layouts for legendary high-volume snowmobiles, ATVs, and street motorcycles. This 6006-2RS bearing serves as a prominent high-volume fitment across standard secondary jackshaft supports, chaincase drives, and transmission gearbox outputs:
Yamaha Snowmobiles (Classic & Modern): Secondary Jackshaft Bearing (Clutch Side / Chaincase Side) for Apex, Mountain Max, FX Nytro, SR Viper, Vector, Venture, and Phazer configurations.
Honda Motorcycles: Universal rear wheel hub center support and countershaft sprocket assembly support on select large-displacement street bikes and cruisers.
Suzuki & Kawasaki ATVs: Output shaft drive gears and final bevel gear housing carrier assemblies on utility 4x4 platforms.
Industrial & Custom Applications: Fits any standard 30mm x 55mm x 13mm bearing pocket across agricultural pulleys, electric motors, go-karts, and custom chopper wheel hub projects.
High-utility metric hardware sized precisely to replicate original equipment layouts for legendary high-volume sport ATVs, dirt bikes, and street motorcycles. This 6304-2RS bearing serves as a prominent high-volume fitment across standard front wheel hubs, steering stems, and final drive axle carrier housings:
Honda TRX400EX / TRX400X (1999–2014): Front Wheel Hub Assembly (Inner/Outer Bearing Core).
Honda TRX250R / ATC250R (1986–1989): Front Wheel Hub & Rear Axle Carrier Overhaul.
Suzuki LT-Z400 QuadSport (2003–2014): Front Wheel Hub support track.
Kawasaki KFX400 (2003–2006): Frontend Steering Spindle and Wheel Hub configuration.
Yamaha & Honda Dirt Bikes: Universal fitment size for front/rear wheel hubs on classic CR125, YZ125, YZ250, and XR250/XR400 models.
Universal Metric Cross-Matches: Fits any standard 20mm x 52mm x 15mm bearing pocket across custom choppers, agricultural pulley setups, and snowmobile track idler setups.
Platform Fitment Bounds: Direct performance plug-and-play drop-in maintenance replacement or high-horsepower rebuild kit engineered explicitly to press into standard factory front steering spindle wheel hubs on classic and modern sport or utility ATVs. Sized precisely to replicate original equipment layouts for legendary Yamaha three-wheelers and four-wheelers:
Yamaha Banshee 350 Series (1987–2001): YFZ350 high-performance two-stroke twin sport models.
Yamaha Warrior 350 Series (1987–2001): YFM350X / YFM350XA manual shift four-stroke sport models.
Yamaha Raptor 660R Series (2001): YFM660RN first-generation liquid-cooled big-bore sport models.
Note: Kits are sold per individual wheel hub; if you need to execute a complete frontend overhaul across both the driver and passenger sides simultaneously, please adjust your cart volume parameters to two (2) units if stock levels allow.
Platform Fitment Bounds: Direct factory performance drop-in maintenance replacement or suspension safety overhaul hardware package designed explicitly for standard original equipment 35mm front fork sliders on classic 1973 to 1987 carburetor-equipped Harley-Davidson Big Twin and Sportster models:
Harley Sportster XL Series (1973–1987): XLH883, XLH1100, XLH1200, XLCH900, Hugger, and early Evolution configurations running factory 35mm tubes.
Harley FX Super Glide Series (1973–1986): FX, FXE, FXEF, FXS Low Rider, and FXSB manual 4-speed configurations.
Note: Sized specifically for standard 35mm diameter fork legs built around part limit 45931-73; does not fit late-generation 1988-up 39mm or heavy 41mm/49mm front ends which require completely different retainer ring width profiles.
Platform Fitment Bounds: Direct performance drop-in maintenance upgrade or replacement safety seals for standard original equipment 45mm Showa conventional or inverted front fork setups on 2003 to 2004 Honda sportbike configurations:
2003–2004 Honda CBR600RR Base models (Featuring standard 45mm Showa front ends per collector catalog matrices)
