From dirt bikes and snowmobiles to ATVs and motorcycles — SP Cylinders delivers world-class cylinder repair, Nikasil replating, and precision honing backed by decades of experience.
We are a specialty cylinder repair and Nikasil plating service built for powersport engines. We repair, replate, and precision hone cylinders for dirt bikes, ATVs, snowmobiles, motorcycles, and more. Whether your cylinder is worn, scored, cracked, or simply due for a replate, we have the expertise to get the job done right. We focus exclusively on cylinder work, meaning everything that comes through our shop gets the full attention from our team of world-class cylinder specialists.
From a standard replate to a full cylinder repair, we offer a complete range of services to get your engine back to peak performance. Every service is performed in-house by cylinder specialists — so you always know exactly who is working on your parts and what's being done.
Precision boring and multi-stage honing to bring your cylinder to the exact pre-plate diameter required, or to fit an oversize piston. Straight, round, and sized right — every time.
Scored, cracked, or damaged cylinders aren't always a write-off. We repair cylinder damage through welding and re-machining, restoring the bore before applying a fresh coating.
After welding or boring, port edges are reshaped, chamfered, and deburred by hand to ensure clean airflow and protect against damage during engine operation.
Our specialty and the cornerstone of what we do. We strip the old coating, prep the bore, and apply a fresh Nikasil coating to factory tolerances — restoring your cylinder to like-new performance.
As a distributor for major piston manufacturers, we can supply pistons, gasket sets, and related parts alongside your cylinder repair — so you have everything you need to put the engine back together.
Every cylinder is thoroughly inspected before and after work. We check for damage, measure bore dimensions, and verify surface finish so nothing leaves our shop that isn't ready to run.
When your cylinder arrives at our shop, it doesn't just go into a queue — it goes through a proven, step-by-step process designed to catch every issue and correct it before your cylinder ever leaves our hands. Every cylinder is logged, cleaned, and inspected before any work begins. From there, we strip the old coating, assess the bore, and determine exactly what's needed — whether that's a straightforward replate or a full repair and replate. Boring, honing, plating, port work, and final inspection are all performed in-house by our specialists, so nothing falls through the cracks.
There's no shortage of machine shops that will take your cylinder. There are very few that specialize in it. We exist to do one thing exceptionally well, every part of how we operate reflects that commitment.
We don't do engine rebuilds, porting, or crank work — we exclusively do cylinders. That singular focus means deeper expertise, better equipment, and more consistent results on every job.
SP Cylinders is an affiliate and licensing partner of Langcourt Ltd., Europe's premier cylinder repair specialist, giving us access to world-class process standards, technical knowledge, and proven repair methodologies.
Nikasil replating is our marquee service and the most technically demanding part of what we do. We've built our shop and our process around getting it right. Every time, on every cylinder.
No surprises. We walk every customer through what their cylinder needs, what it costs, and what to expect, before work begins.
SP Cylinders is proud to be veteran-owned and operated. The same discipline, attention to detail, and commitment to getting it right that defined our service to this country defines the way we run our shop.
We are an authorized distributor for major piston manufacturers, which means we can supply the parts you need alongside your cylinder repair, saving you time and keeping your project on track.
Getting started is simple. Fill out a work order, pack your cylinder securely, and ship it to us. We'll inspect it, walk you through what it needs, and get it back to you restored and ready to run.