Precision crankshaft rebuilding for personal watercraft, snowmobiles, motorcycles and ATVs. We disassemble, replace, and true — so your crankshaft comes back tighter than the day it shipped.
We specialize in 2-stroke crankshafts — the kind that take a beating at high RPM and need to come back dead-true. Flat-rate pricing by make and model.
Full rebuilds for 2-stroke personal watercraft — fresh connecting rods, bearings and seals, and a trued assembly built for hours on the water.
Rebuilds for 2-stroke sled engines built for cold-start reliability and full-throttle abuse. Singles, twins, and triples.
2-stroke and 4-stroke singles, plus the Yamaha Banshee twin. Quality rods, bearings, and precision balancing.
If it's a 2-stroke crank, chances are we rebuild it.
Straightforward, mail-in friendly, and built around getting your crank back right.
Reach out for a quote and shipping details. Pull your crank (or send the whole bottom end) and get it to the shop. See how →
We disassemble, inspect, replace worn rods, bearings and seals, weld where needed, then press, true, and balance the assembly.
Every crank is measured for runout and checked before it ships back to you, ready to drop in and run.
Include your contact info and engine details with your core so we can turn it around fast. New to mail-in service? We'll walk you through it.
Competitive Crankshafts is based in Garden City, ID, just outside Boise. Local riders are welcome to reach out, and our mail-in service means you can get a professional 2-stroke crankshaft rebuild no matter where you ride.
Ship us your crankshaft or complete bottom end and we'll rebuild, weld, true, and balance it, then send it back ready to run.
507 E 45th Street, Unit 300
Garden City, ID 83714
208-297-3344
Real cranks, rebuilt and ready to run.
A few quick answers — see the full FAQ for more.
Fill this out, print it, and place it in the box with your crankshaft. It tells us whose core it is and where to send it back.
Competitive Crankshafts
507 E 45th Street, Unit 300
Garden City, ID 83714
Phone:
208-297-3344
Email:
Jeffseebold@gmail.com
Tip: Call or email first for a quote and current turnaround.