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DMC Performance

4.6 (100 reviews)
Closed 10:00 am - 5:00 pm

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Services - DMC Performance

Motorcycle repair

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I highly recommend DMC for any service on your motorcycle! Mark is very knowledgeable, fast, and super customer friendly! I had to fix my bike fast because I needed to sell it, as moving abroad. He went out and beyond to get my old bike serviced, fast, and without overcharging. He even came and picked up the bike with his trailer. I would use DMC again, and again, if it wasn't that i'm moving abroad.

Bam!
Paul O.

Mark Duncan, the owner and main mechanic, has been my go to guy for everything motorcycle related for years now. His prices are so low I feel guilty, his work is beyond excellent and professional, and to top it off he is one of the nicest guys I've ever met. He is able to get all the parts, gear, and even accessories I've needed and his prices are much lower than the dealers. And seriously his tire prices installed can't be beat for brand new Michelin Pilots (or any tire I guess.) All in all, try him out once and you'll never need another mechanic for your street or dirt bike. Thanks Mark!!!!

Great Job!

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10 years ago

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8 years ago

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6 years ago

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8 years ago

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Mark D.

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10 years ago

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Ask the Community - DMC Performance

Review Highlights - DMC Performance

I moved to Mira Mesa but I still take my bike here, since Mark is exceptionally trustworthy and down to earth.

Mentioned in 70 reviews

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SD Moto Repair - My 06 ZX-10-R

SD Moto Repair

(79 reviews)

Grantville

I really like finding owner/operators like Konstantin. Sounds cliche but when you own a business…read moreand interact directly with the customer and provide them a service, you're much more likely to care about what you're doing. I needed a front fork seal rebuild on my bike. I'd gone by a big local place up in Kearny Mesa (won't name) and dude was dismissive, like 'ah yeah a couple hours to pull the forks, a couple hours to rebuild...but we're a month out to get you in'. Acted like he didn't want my business and wouldn't even provide a number 'uh yeah like $130/hour times 4 hours, and yeah parts too'. Gel haired, flat brimmed, frosted tip 50 year old goofball. SD moto did a 24 hour turnaround. Yep, actually less than 24 hours. They preemptively got the parts (he paid for them) dropped bike off Friday, picked up Saturday. Beyond happy. I have a valve clearance coming up in a few thousand miles and I'll coming here. Also he's from Bulgaria , not Russia. Good guy! Edit Bulgaria NOT Belarus haha. Sorry!

I was having my 2006 Kawasaki Zx10R serviced by a cycle shop closer to my area for years called…read more(motozone) on el cajon blvd but one day the main mechanic there named Roger told me my bike was too old for them to work on so I then stopped going there & I woiuld not recommend them to anyone. I then came across SD moto repair & found brother constantine. He is a 1 man worker but he does work at a fair price, & does it a good time frame & i have been taking my ZX10R to him for some years now for oil changes, tire changes, brake & master cylinder work, front & rear sprocket & chain replacement etcc.. he was even able to find me a replacement fairing for my Zx10R which are hard to find now because of my bikes age & he helped me today (9/13/25) properly fit a green rear seat cowl on my ZX10R that I bought on Ebay that is seen in this photo. I would reccomend him to any rider that needs their cycle serviced for fair pricing, good work & good turn around time. He also doesn't tell his customers "your cycle is too old" as the motozone mechanic told me years ago.

Motozone - Kid loves his bike

Motozone

(103 reviews)

Normal Heights

I live in Palmdale, 3hrs North of SD. While visiting family I stopped by Motozone to look at these…read moreE-motos my son really wanted for Christmas. Ivan and Steven were beyond helpful answering my questions of safety and performance. With their help I ended up purchasing a Mantis X in the box for a black Friday deal, saving almost $1k. Come Christmas Day my son opened the box and we easily assembled the bike. He was so excited! Then the battery wouldn't charge. Poor guy spent Christmas sitting on the bike imaging the ride. After research it appeared the battery level got too low where it needed to be "woken up" before the charger could recognize it. 12/26 I contacted Steven and spoke to him and Ivan about what to do. Because I was returning to SD to visit again they asked me to stop by the shop to replace the battery with one they had on the floor model. The problem is they were closed that Monday I would be there. Ivan came to the store to open up for me so we could exchange the battery. They knew how far I was traveling and made everything work to get my kids bike running. Super thankful to Ivan and Steven and all their help with this process. I will definitely be a return customer! These bikes are so much fun, I want one for me now.

To anyone being told they're the e-bike guys, they're not. They're the Surron guys. And if you plan…read moreon bringing yours you should make sure you have the title and other documents with it. Nice shop, kept clean and super nice showroom. Lots to look at and the parts they had were super nice. Gentleman at the front was quiet at first then after a few mins he came around. All around cool place , definitely worth stopping by.

DCH Honda of Mission Valley

DCH Honda of Mission Valley

(1k reviews)

I had an absolutely awesome car-buying experience with Tony Maldonado! From start to finish, Tony…read morewas kind, patient, knowledgeable, and truly cared about making sure I found the right vehicle. He took the time to answer all my questions and provided excellent communication through text and email, which made the whole process so easy and stress-free. What really stood out was how upfront and transparent he was about pricing. He shared great information that helped me confidently decide which car was the best fit for me - no pressure, just honest guidance. Derek in the finance office was also a pleasure to work with. He made the paperwork process smooth, efficient, and surprisingly enjoyable! Overall, the entire experience was seamless and positive. If you're looking for a hassle-free, professional, and genuinely pleasant car-buying experience, I highly recommend working with Tony. I couldn't be happier!

What a frustrating experience. I recently purchased a used car from Honda and brought it to my…read morelocal Honda dealership for service after multiple warning lights began randomly turning on only days after purchasing the car. The lights were on the morning of my appointment and remained on when I arrived at the dealership. I specifically pointed this out to Ivan Gonzalez at drop-off and explained that the lights have been intermittent and may turn off once the vehicle is shut off. Several hours later, I received a call stating that service was being refused because there were "no warning lights on at arrival," which is simply not true. Despite this, the dealership identified the cause of the issue but still declined to make the repair, stating that policy required the warning lights to be present--something I had already shown and explained at drop-off. Overall, this was a very disappointing experience due to poor communication and an unwillingness to address a clearly documented issue.

DMC Performance - motorcyclerepair - Updated May 2026

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