Max Power Inc - 2/4 Stroke Cylinder Plating Endorsements

Check out what the editors in the off-road world have to say about our products.
Jan 08		ATV Action: Maxpower/RPM's is known for building some of the most powerful ATV motors around. We know that. So when we got a call from Maxpower asking if we wanted to test their new LTR stroker kit, we tried to stop giggling like schoolgirls. We waited for weeks to get our hands on what we were sure would be the fastest 450-chassis quad we've ever ridden, and when we finally got our hands on it, we didn't know what to do with ourselves......... Click here to see the article.
Jul 07		Motocross Action: We ride Maxpower's Big Bore Yamaha YZ285. Click here to see the article.
Jun 07		Dirtwheels: LTR 498 ICE CUBE. Click here to see the article.
Dec 06		Dirtwheels: TRX 522R vs. TRX 488R. Click here to see the article.
Dec 06		Quad Off-Road Magazine: Maxpower/RPM's YFZ523. Click here to see the article.
Dec 06		ATV Sport Magazine: "The biggest advantage of the ICE CUBE was its pulling power and ability to lug gears. Our test rider noticed power strikes right on the bottom end and hard pulling all the way through the power band! Click here to see the article.
Oct 06		Dirtwheels: YFZ 523 (cover photo) Hottest sand action of the year!! Click here to see the article.
Sept 06		Dirtbike Magazine: Cool Jalapeno-KX 276F ICE CUBE: Whoa! First off, this has to be the easiest starting four-stroke that we've tested. Power wise there is no comparison to the stocker; the CUBE hit harder, sooner and has meat. It craves a higher gear, pulls the cog with apparent ease, and gets with the program post haste. Click here to see the article.
Sept 06		Dirtwheels: ICE CUBE TRX 488R: Our ICE CUBE kitted Max Power-RPM 488cc engine kit gave the Honda 450R a substantial increase in overall useable power. It pulls like a freight train on the bottom end, and flows smoothly through a revving top end. We felt this was one of the best running Honda 450R's we've ever ridden. There is no hitches in the power and hook-up in phenomenal. This is the type of engine mod that will make 98 percent of the riders out there faster! Click here to see the article.
Aug 06		Dirt Rider Yamaha YZ 285: The motor is plenty strong on this one; it has a lot of low and midrange meat and pulled hard. It's quicker than a KTM 300!
June 06		Dirt Bike: THE IN-BETWEENERS RMZ & YZF 315: The 315's are easier to ride than anything on the track. 450's require more strength, 250F's require more energy. Despite producing so much more power, the 315's seem to last as long or longer than a stock bike! Click here to see the article.
June 06		Dirt Rider MaxPower-RPMs CRF302x ICE CUBE & Stroker Crank in the 24-Hour Torture Test. We ran the 302 ICE CUBE kit in our VET class MX bikes and have found it's power to be undeniably great. It torques and pulls way lower without hesitation and doesn't lose anything on top. If it seems as if I'm rambling about this motor, it's because it's that damn good. OK, I'm done now. This motor rules. Now I'm done for real! No 250X I've ridden comes close on power! -Karel Kramer Dirtrider wrecking crew. Click here to see the article.
May-06		Motocross Action: We ride Maxpower/RPM's Big-Bore KX315F.With the weight of a 250F, but the power of a 450, the KX315F is a tantalizing mix. Click here to see the article.
May 06		4-Wheel ATV Action: Yamaha YFZ 523 DUNE MONSTER: The 523's solid bottom to top end pull was great for dune riding. If we were even close to the best gear for the situation, the YFZ was unboggable. With the extra power, the hardest thing about hill climbs was avoiding launching off the tops too far!
April 06		Dirt Bike MaxPower-RPMs AMA Legal RM139 Pages 48-52 After just a few laps it was clear that the RM139 was much faster and stronger than the stocker.
April 06		Dirt Rider Pages 132-134 MaxPower-RPMs CRF488 ICE CUBE -this bike Rips! First gear should be removed, as second, third and usually 4th Will pull through anything but the tightest corners. Power remains Hondalike, with a smooth and progressive build, but it slows a little sooner on top than stock. If you want more, just shift up and hold on. Is it a handful? Oh, sure. Just remind yourself what you’re on and only twist the throttle an eighth of what you’re used to!
Mar 06		Dirt Rider MaxPower-RPMs YZ285 "The YZ 285 has plenty of horsepower and torque on tap to challenge even the baddest 4-strokes"
Dec 05		ATV Sport Magazine Max Power RPM’s ICE CUBE takes five. ATV drag racing review, five YFZ ICE CUBE Quads take 1st, 2nd, 3rd, 4th & 6th place in the largest ATV event in the Mid West. “Results speak, and we have no choice but to listen. Judging by how well ATVs equipped with Ice Cube cylinders did at the drag races, Max Power can make a lot of power in your ATV’s engine. ATVS”
Fall 05		2XTREEM.com Satellite TV show installs a CRF276X ICE CUBE and makes the bike street legal.
Oct 05		TWMX Pages 138 139 MaxPower RPMs YZ167 STEALTH 10 year anniversary of the YZ167 appearing on the cover of Cycle News May 20, 1995. TWMX tested Jay Clark’s personal 2005 YZ167. Max built it to be a top end screamer for Jay. “We were worried about having a “Vet” big bore with tons of bottom and mid but no top end pull, but the bike remains snappy and exciting to ride, as top end power is incredible.”
Oct 05		TWMX Pages 132 136 An interview with Rick Peterson on the 10th anniversary of the YZ167. "A Decade of deceit." Rick only gives out the names of a few cheaters that have stiffed him for payment!
Oct 05		Dirt Bike tests Team Kawasaki Offroad racer Cole Caulkin's KX315F ICE CUBE at the Maryland GNCC
Aug 05		MXA History of the Big Bore in Motocross. An interview with Rick Peterson.
July 05		Dirt Bike Destry Abbot's Max-Power KX285Dirt Bike Destry Abbot's Max-Power KX285
July 05		Dirt Rider Max Power-RPMs YZ167
July 05		Dirt Rider CRF302 (On the cover+ a 6 page test) ICE CUBE full tests and brief test on the YZF315 ICE CUBE. "..the 302 is amazing. It barks hard from low in the rpm range; the middle rpm range is more muscular by far but still as controllable and as fun as stock. Let the bike rev, something you do a lot less of on the 302-and it rips with as much as 8 more horsepower than stock. You tackle rutted turns a gear high as you would on a 450 and accelerate through the turns at a far lower rpm than with a stock 250. The same is true with jumps that require you to shift right beforehand in order to clear them on a stock 250. On the 302 you just shift earlier and let the power pull all the way up the face. This bike is not a hot-rod 250. It is a different animal that feels between a 250 and a 450.-a place we like. As powerful as the 302 is. it remains useable and easy to manage like a 250. As effective as modern 450's are, they can be demanding to ride, and many pilots find them overkill. The biggest difference for me is how much faster I can ride in and out of turns on the 302. I'm not sure I am faster on the 302, but I certainly feel quicker and can last longer......when it (150 mile Best in the Desert Race) was over, all three of us were blown away by the bikes instant response and great power. We pounded it through rocks, mud and deep sand, and it never missed a beat. We have at least 15 hours on the engine, and it shows no signs of slowing, and the valves checked out as perfect after the race. Laughlin had lots of sections that called for wheelying right into steep faces, and the RPM's bike was excellent there in in whoops of all sizes. Now we know that a fun motor is a fun motor. We aimed at a great moto engine combination, but it proved awsome off-road. This bike is an addiction. Once you have ridden it, you want to ride it more; It's that much fun. Sure, it's pricey; but a thrill ride such as this CRF302R is priceless."
June-05		2XTREEM.com Volume#6 Satellite TV show where Randy Hawkins installs a YZ315F ICE CUBE and test rides it.
May-05		MXA Pages 76-82 CRF498 ICE CUBE “If you are the kind of guy who likes to start with the most horsepower and fine tune it to the nth degree, this is the bike for you.”
April-05		MXA Profiles Page 274 MaxPower’s purchase of the RPMs 2-stroke line and RPM’s move of the ICE CUBE machine shop from Covina, California to Ontario, California. Page 279.April-05 MXA Page 268 KX276F kit photo.
March-05		Cycle World WR302F ICE CUBE (Street Legal) “It retains the light feeling and quick-easy handling of a 250cc four-stroke, but with significantly increased bottom-end snap. Wheelies are much easier and gear selection isn’t nearly as critical. In the hands of an expert, you’d be hard pressed to find a bike that could attack a trail as effectively while having the lungs to keep singing in wide-open spaces. Overall, the WR315 provides a supurb balance of power and agility and makes one of the most fun trail bikes about 30 percent more so.”
March-05		Cycle World Pages 82-83 KXF276 ICE CUBE “..we came away with a bike without a displacement class at the track, but which was a lot more useable for real-world riding. If you own a KX-F or RM-Z and you’re thinking about a little more power, just wait until rebuild time and use it as an excuse to step it up. We’re sure glad we did!” Jimmy Lewis
Feb-05		Dirt Bike WR276F ICE CUBE install on Gary Jones' street legal bike.
Nov-04		MXA CRF302 ICE CUBE revisited
Oct-04		ATV Sport Magazine Suzuki Z455 Big bore. “In head to head hole-shot comparisons, the Max Power Z 455 pulled over 6 quad lengths on the stock quad (with exhaust) that we had for comparison." Jerrod Kelley-editor
Sept-04		MXA CRF-302 ICE CUBE
Aug-04		Dirt Bike YZ-139 STEALTH “if you don’t mind shifting a little more often, the 139 has power that’s comparable with the thumpers.”
Aug-04		Dirt Bike KX-276F ICE CUBE “What a difference a few cc makes!”
May 26 04		Cycle News, YZ277F STEALTH
May 26 04		Cycle News YZ302F.
June-04		Dirt Rider CR-280 (2-stroke) STEALTH
Apr/May 04		AmateurMX CR151 STEALTH
Apr-04		MX Racer RMZ-302F ICE CUBE (Now the RMZ315) “the RMZ runs perfectly and hasn’t boiled over since the ICE CUBE was added.”
Apr-04		Dirt Rider Page 140 KX151 STEALTH “RPMs loves oversize pistons, and the company does the research to make big bores right.”
Mar-04		TransWorldMX RM-277F STEALTH
Mar-04		MXA “An increase in cubic centimeters is the time honored method of making a four stroke faster. Rick Peterson Motor Sports makes 302cc versions of all popular four-strokes.”
Mar-04		Motocross West Features MaxPower-RPMs Super-Mini test rider Shawn Hayes with the cover shot.
Feb-04		Dirt Bike KX-302F ICE CUBE (Predecessor to the KXF315)
Sept-03		Final Lap YZ302F (Predecessor to the YZ315F)
Nov 5-03		Cycle News KX167 STEALTH
Oct-03		Dirt Rider KX151 STEALTH “the bike is perfect for the Vet racer who wants a 125’s weight with more horsepower.”
Oct-03		Dirt Bike Pages 94-98 YZ167 (Kevin Hines' bike in a brutal enduro test) STEALTH “This isn’t a 125,’ said Kevin. ‘It’s more like a 200, only way faster. I’ve been riding one like it for over a year now and I don’t want to ride anything else. It’s just incredible.”
Oct-03		Motobike Pages 78-82 YZ262 STEALTH (This magazine is published in Israel, so you read it backwards, but the pictures are great!)
Sept-03		Dirt Bike WR302F Street Legal (Predecessor to the WR315F)
Aug-03		Dirt Bike Page 72 Rebuilding a a 2-stroke. “Where to go: RPMs in Ontario, California and MaxPower in Madison, Wisconsin are tops in dealing with plated cylinders…”
July-03		MXA Pages 80-84. YZ151 STEALTH “Unlike a breathed-on 125, which gives away something to get something, Rick Peterson’s YZ151 doesn’t give up anything. It just gives and gives and gives.”
July-03		Dirt Bike RM105 Super-Mini and MaxPower KX155 STEALTH
July-03		Dirt Bike RM105
July-03		Dirt Bike MaxPower KX155 STEALTH “The 155 is a rocket! If you’re a cheater in the 125 class, we recommend watching the gate drop, counting to three, then leaving the start line” Ron Lawson-Editor
July-03		TWMX YZ302F in pullout poster. (PS-The 302 isn't the only thing featured in the poster............)
May-03		TWMX Pages 112-114. YZ302F (Predecessor to the YZ315F ICE CUBE) “The RPMs YZ302F is, for sure, the most fun-to-ride bike we’ve come across. It’s a 10.”
Feb-03		TWMX CR134 STEALTH “…the old saying, ‘There’s no replacement for displacement certainly holds true……..”
Jan-03		Dirt Bike YZ302F (Predecessor to the YZ315F like Randy Hawkin's races for Team Yamaha.)
Sept-02		Dirt Bike Pages 120-124 YZ262F STEALTH “Making a YZ250F faster than stock is a tough job. Replacing the pipe gives you a horsepower or two but then it gets difficult. You can spend thousands on airboxes, cams and headwork, but you run into diminishing returns. Giving the bike a 2mm overbore is like getting a clean slate. All of a sudden the bike can really us more flow through the airbox, the head and the exhaust. So all of the modifications that net marginal results with the stock bike are suddenly worthwhile.”
Sept-01		Dirt Rider Page 128 RM125 Replate
Aug-01		MXracer KX167 STEALTH “It’s the best of both worlds put into one."
Aug-01		MXA Pages 195-202 RPMs 8-page catalog.
Mar-01		Motorcycle Product News Page 43 CYLINER PLATING “RPMs, better known for it’s 2-stroke big bore kits, wants the world to know they also replate 4-strokes…”
Aug-00		Dirt Rider Page 84 “RPMs spends mega hours on the dyno developing big bore 2-stroke engine kits…..”
July-00		Dirt Rider Page 53 RM285 STEALTH “With the RPMs 285cc kit, the bike is very fast, but more importantly, the engine has a grunty, torquey feel to the power that is attributable to the extra displacement. Very Cool.”
June-00		Dirt Rider CR265 STEALTH “The engine featured mild porting and compression, so it runs on pump fuel with no problem. It produces very smooth power, thus it is easy to control. The power is much like stock, but more and smoother. The engine runs very strong in the midrange.”
May-00		MXA Pages 161-164 YZ134 STEALTH “We’ll get this out of the way from the start. Our RPMs YZ134 is the fastest legal 125 we have ever ridden.”
Apr-00		MXracer Page 88 YZ139 STEALTH “This thing rips!’ exclaimed Eric Kehoe, ‘It’s definitely faster than any modified 125 I have ever ridden.”
Mar-00		Dirt Bike Page 43 CR265 STEALTH “Even though the Honda showed the smallest displacement increase in the test, it showed a dramatic change in the powerband.”
Mar-00		Dirt Bike Page 44 KX310 STEALTH “Frankly, this bike blew our minds. It is exactly like a normal KX250, with the exception of huge power output. It’s a giant killer.”
Mar-00		Dirt Bike Page 46 RM285 STEALTH “Even though the bike is more tame than the stocker, it will outpull any 250 easily. Once again, the real work was in using the extra power to fill in the holes in the stock Suzuki’s power curve.”
Mar-00		Dirt Bike Page 48 YZ300 Big Bore&Stroker STEALTH “The 500 pound gorilla of the overbores.”
Jan-00		Dirt Rider Page 152 KX82cc STEALTH (from KX60) “We were thrilled with the result and so was our test rider, 8 year old Keenan Hateley. He liked the bike much better than his kX60 , since the power worked so well and it was easy to adapt to.”
Nov-99		MXA Page 167 Profiles RPMs
Nov-99		MXA Page 176 YZ167 STEALTH Voted one of the best buys of 1999. “Yes, it’s cheating, but not in the Vet class!”
Oct-99		Dirt Rider Pages 89-90 CR167 STEALTH
Oct-99		Dirt Rider Page 90 RM167 STEALTH
Oct-99		Dirt Rider Page 91 YZ300 STEALTH
Sept-99		Cycle News KX144 STEALTH
Sept-99		ISSUE 36 Cycle News Page 47 Cylinder Replating “Peterson’s repeat customers include Factory Kawasaki, Suzuki and Yamaha race teams, FMF, Pro-Circuit, Chaparral, White Brothers and many more of the top aftermarket firms.”
Sept-99		MXA Pages 14-152 YZ420 STEALTH (RPMs kit sold by White Brothers)
Jun-99		MXA Pages 112-116 YZ280 STEALTH “..it poured the power to the ground. It produced several more ponies than the stocker, but it did it in a more manageable manner.”
Dec-98		Dirt Bike YZ112 SuperMini takes on 1999 YZ125. The SuperMini was much faster to the first turn on a Stalker Radar gun, but the 125 had faster lap times for most riders due to superior suspension and larger wheels.
Nov-98		MXA Pages 116-126 YZ167 STEALTH “The YZ125 has the perfect powerband: good bottom, great midrange and good top end, and the YZ167 mimics this-only with a 4X multiplier. It has great bottom, powerful midrange and unbelievable top end.”
Aug 95		Dirt Bike Pages 65-68 YZ139 and YZ167 STEALTH
May-95		issue #20 Cycle News Cover and Pages 20-21 YZ167 STEALTH “The bike would repeatedly run dead even in drag races against a stock YZ250, and to our delight, yelded a holeshot in our first race against 250 and 500-mounted Vet riders.”