Complex Powersports

Complex Powersports Offering the highest quality in service, parts, detailing and accesories for all your off-road vehicles!

Providing the highest quality in engine rebuilding services has always been one of our specialties, but boy have we been...
08/18/2026

Providing the highest quality in engine rebuilding services has always been one of our specialties, but boy have we been doing a lot this year.

Here is one of the many Polaris engines that have been across the bench this week. It is a great example of a typical Polaris rod bearing failure, usually caused by low oil or lack of maintenance.

We sure hope you don’t find yourself in this situation, but if you do, we are happy to help.

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI

Yesterday we lost a huge part of the riding community and Complex Powersports family. Jeff Papst truly inspired us all w...
07/25/2026

Yesterday we lost a huge part of the riding community and Complex Powersports family.
Jeff Papst truly inspired us all with his passion and love for this industry. He was a selfless person who helped and touched so many people. We ask everyone to show your support for the Papst family in any way possible during this challenging time. We will be accepting donations here at Complex Powersports that will go directly to the family, as well as planning a memorial ride and celebration of life. Jeff was loved by so many and has left a great impact on the community. We also thank all of our clients for patience and understand as we navigate this.

We love you Sr. and you will be missed deeply.

Quick photo dump of some of the awesome projects that are keeping us busy this week.We have been hard at work trying to ...
07/01/2026

Quick photo dump of some of the awesome projects that are keeping us busy this week.

We have been hard at work trying to beat the heat and make sure everyone is ready to ride this holiday weekend!

From engines and differentials to clutching and tires, and from side by sides to snowmobiles, you guys have been keeping us busy. We are so glad to have the opportunity to help everyone stay riding this summer.

And of course, if you need anything while out riding this weekend give us a call. We have belts, oils, filters, masks, goggles and skilled technicians on stand-by!

Complex Powersports
1221 N Saint Helen Rd
Saint Helen, MI 48656
810-391-3584

Tech tip of the day- make sure you keep track of all the little nuts, bolts and clips while working near your intake! Th...
06/19/2026

Tech tip of the day- make sure you keep track of all the little nuts, bolts and clips while working near your intake!

This RZR Turbo S came in running rough after a DIY intercooler replacement. During diagnostics we determined it to have low compression in one cylinder caused by a plastic push pin making its way through the intake and getting stuck in one of the exhaust valves.

This certainly isn’t something we see every day and serves as a reminder to make sure every little piece is accounted for while working near an open motor.

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI

This Pro XP got some Rockford Stage 5 audio that absolutely rocks!!!Don’t settle for cheap factory speakers that you can...
06/09/2026

This Pro XP got some Rockford Stage 5 audio that absolutely rocks!!!

Don’t settle for cheap factory speakers that you can hardly hear while riding. Give us a call today to see what we can do to make your machine bump like it should!

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI

One of our favorite Banshees came back for a refresh to start the season off right! We got them set up with some Wiseco ...
06/08/2026

One of our favorite Banshees came back for a refresh to start the season off right!

We got them set up with some Wiseco Powersports pistons and a Hot Rods crankshaft assembly. They also went for some tasteful upgrades including Toomey Racing USA T5 pipes and a Modquad Racing cool head. Plus, this machine already had VForce 4 reeds and PWK 28 carbs previously done here.

This one has a great story behind it and we are happy to continue maintaining and improving this beautiful machine.

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI 48656

Here are some pictures of a top end refresh we recently did on a CRF450X including a Vertex Pistons piston, Kibblewhite ...
05/28/2026

Here are some pictures of a top end refresh we recently did on a CRF450X including a Vertex Pistons piston, Kibblewhite Precision Machining, Inc. valves and springs, and a nicely refinished cylinder.

Early Honda Unicam engines are notorious for valve wear and we do many of these jobs every year. These Kibblewhite valves are a solid cure for this and should make for years of riding before they’ll need touched again.

Give us a call for all your engine building needs now matter how big or small!

Complex Powersports
8103913584
1221 N Saint Helen Rd
Saint Helen, MI 48656

Memorial Day weekend is here! We look forward to seeing everyone out on the trails. Stop by and say hi!And don’t forget ...
05/22/2026

Memorial Day weekend is here!
We look forward to seeing everyone out on the trails. Stop by and say hi!

And don’t forget we will be in the shop all weekend ready to help with anything you need to stay riding!

We all know there will be lots of traffic so ride right, ride smart and let’s all have a fun, safe weekend. Happy Memorial Day!!!

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI

2025 Pro R + Pandemyk Performance Tuning + DynoJet Clutch Kit = One sweet ride. We offer a wide variety of performance u...
05/18/2026

2025 Pro R + Pandemyk Performance Tuning + DynoJet Clutch Kit = One sweet ride.

We offer a wide variety of performance upgrades to give your machine a boost in power and make sure all that power makes it to the ground.

Complex Powersports
810-391-3584
1221 N Saint Helen Rd
Saint Helen, MI

We are out of the office the rest of the day to attend the races at Northern Power Race Park! Good luck to everyone raci...
05/16/2026

We are out of the office the rest of the day to attend the races at Northern Power Race Park!

Good luck to everyone racing today!

Address

1221 N. St. Helen Road
Swartz Creek, MI

Opening Hours

Monday 11am - 8pm
Tuesday 11am - 8pm
Wednesday 11am - 8pm
Thursday 11am - 8pm
Friday 11am - 8pm
Saturday 11am - 5pm

Telephone

+18103913584

Website

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