Description
Park Tool CTP-4K Replacement Kit
Park Tool CTP-4K kit restores your chain tools to factory performance. Mechanics press clean rivets every time.
Complete Compatibility List
CTP-4K works perfectly with CT-4, CT-4.2, CT-4.3 and CT-11 chain tools. These popular models handle 5‑ to 12‑speed chains reliably. The kit includes four hardened steel pins and one precision 5/32″ ball bearing. Every component matches OEM specs exactly.
Step-by-Step Replacement
Remove the handle cap with a coin or screwdriver. Extract the old pin carefully. Catch the falling bearing immediately. Align the new pin with the tool body. Drop the bearing into place. Screw the cap tight firmly. Test on scrap chain first. Your tool presses rivets smoothly again.
Park Tool CTP-4K Hardened Pins
Pins feature hardened steel construction for durability. They withstand hundreds of riveting cycles before dulling. Home mechanics complete chain jobs confidently. Professional shops reduce downtime between customers. Quality exceeds generic replacements noticeably.
Essential Workshop Accessory
Every bike shop stocks CTP-4K kits. Road mechanics fix Shimano Dura‑Ace 11‑speed. MTB techs press SRAM XX1 Eagle 12‑speed. Touring cyclists carry spares for roadside repairs. Weekend warriors join chains after trail breaks.
Long-Term Tool Care
Replace pins proactively before they mushroom. Clean tools with isopropyl alcohol regularly. Store in dry conditions. Pins last longer with proper maintenance. Invest once for years of service.
Chain Compatibility Guide
Pins press 5‑speed Hyperglide to modern 12‑speed flawlessly. Shimano, SRAM, Campagnolo and KMC all work. Single‑speed chains fit too. Verify chain width matches tool specs first.
Value for Mechanics
Genuine Park Tool replacements cost less than new tools. Kits contain multiple pins for repeated use. Mechanics save time and money. Reliability prevents frustrating re‑breaks.
Park Tool CTP-4K ensures precise chain work always. Stock up today.




