Frienda Primary Drive Locking Tool for Harley Twin Cam/Softail/Road King — 2-Pack Black, Compact

Frienda’s two-piece primary drive locking tool secures the primary sprocket so you can remove or install primary drive components on Harley Big Twin, Softail and Road King models with controlled torque and minimal movement.

Working on a Harley primary drive demands a stable sprocket so you can loosen or tighten the nut without the drivetrain rotating. These two compact locking tools slip into the primary drive between the front sprocket and chain to block rotation at the bottom of the case, letting you apply torque safely and precisely. Built to fit common Twin Cam and Big Twin setups, the set includes two black tools so you have a spare on hand or can outfit multiple machines.

How does this tool keep the primary drive from turning while I work?

The tool inserts into the primary drive area and sits between the front sprocket and chain at the bottom, preventing the sprocket from rotating as you torque the nut. It holds the compensating sprocket steady without contacting or damaging the sprocket teeth, so you can concentrate force where it belongs.

• Designed to locate between front sprocket and chain at the bottom of primary case
• Restricts sprocket movement without engaging gear teeth directly
• Enables controlled application of torque for removal or installation

Will these locking tools fit my Harley model and primary drive?

These locking tools are made to work with most common primary drives on Harley Big Twin platforms, including many Twin Cam, Softail and Road King models. Compatibility depends on primary case and sprocket dimensions, so check measurements and clearances against your motorcycle before purchase.

• Compatible with many Twin Cam, Big Twin, Softail and Road King primaries
• Compact shape fits into the lower primary area between chain and sprocket
• Read size details to confirm fit for your specific year and model

How do I use the Frienda primary chain locking tool safely?

Place the motorcycle on a stable stand, remove the primary cover according to the factory manual, then insert the locking tool between the front sprocket and chain at the bottom of the primary. Use a proper wrench and steady force; keep hands and loose clothing clear and follow standard workshop safety practices.

• Secure bike on a level stand before starting work
• Remove primary cover per manufacturer instructions first
• Insert tool from below to engage between chain and sprocket, then apply torque

What’s included and what are the product’s practical advantages?

The package contains two black primary drive locking tools so you have a spare or can keep one in your tool roll. They’re lightweight, easy to insert, and designed to avoid damaging sprocket teeth while offering a reliable hand tool solution for home mechanics and professional techs alike.

• Two locking tools included in classic black finish
• Easy to apply and remove without modifying the primary system
• Useful for home mechanics and shop technicians for maintenance tasks

Who is this for: This Frienda 2-piece primary drive locking tool set is aimed at motorcycle enthusiasts, DIY mechanics, and professional shops that service Harley Big Twin, Twin Cam, Softail and Road King models. If you perform primary maintenance, sprocket or clutch removal, or simply want a safer, more controlled way to apply torque to the primary assembly, these compact tools make those jobs easier and help protect sprocket teeth during work.