We will be closed Weds Thurs and Friday (November 27, 28, 29) for Thanksgiving.
We will reopen Saturday the 30th for Small Business Saturday. All in stock bikes and merchandise will be on sale!
The “marinbikesshop.com” site pictured below is a scam site that has popped up. We were warned about it my Marin today. Please avoid it. They are not affiliated with Marin in any way.
marinbikesshop.com is a scam site. Please avoid it!
We have several Transition bikes in stock and all of them are $100 BELOW the price at Transition! Get it from us today for less!
Several of these colors are sold out at Transition. If they do have the bike you want in stock at TR reach out to us and we can get it for you.
We have:
Patrol GX Alloy size Large $3399
Sentinel Carbon GX size Large $3899
Sentinel Alloy NX size Medium $2899
Smuggler Alloy NX size Large $2899
Sentinel Carbon Frameset XL $1900
Scott Scale 26” bike sale!
Do you have a child who has outgrown their 20” or 24” bike and is looking for the next bike? We have several of these Scott Scale 26” mountain bikes that were $800
On sale for $350!
This is a really nice aluminum frame 2X8 speed mountain bike with hydraulic disc brakes that many kids 10 and up can ride for several years and will be a great hand me down bike for multi child homes.
We are a Canyon Approved Service Provider. They do not have “Dealers” as they are Direct to Consumer only.
We see a lot of Canyons in the service department. Not because they are the best bike out there but because they offer a price point that brands who choose to sell their bicycles through Brick and Mortar shops cannot match.
This is important because they just released a STOP USE on the Spectral:ON CF & CFR, and Torque:ON CF eMTBs. If your bike is on this list please stop riding it and reach out to us ASAP.
There is another recall type issue with a different Canyon bicycle on the horizon that we are aware of but has not gone live yet.
We are a full sales and service bicycle shop
MJ’s Cyclery opened in 2014 with the goal of getting more people on bikes and out of their cars. Whether that means changing up your commute, heading to the store for some groceries, or going out with friends we are here to help.
We have grown into a full service shop well versed in anything from a basic commuter hybrid to an electronic shifting carbon road bike or high end mountain bike.
Any new bicycle purchased from us includes 5 years of free basic maintenance. Brake, shifting, and overall adjustments are included. More advanced repairs and wear item replacements (chain, brake pads, etc) are the responsibility of the owner.
We are a stocking dealer for the Marin Bikes and Scott brands. Marin bicycles date back to 1986 when the mountain bike revolution was in full swing. As many brands do they added other segments to their lineup over the years. Today’s Marin offerings include mountain, gravel, road, cyclocross, commute, neighborhood, and kids’ bikes.
We are also a dealer for Transition Bicycle Company, Banshee Bikes, Argon18, Scott Bikes, All-City, Surly, and Soma. There are several other brands available to us as well.
We offer a full range service department. Whether it’s fixing a flat, getting your bike a tune up, or doing an overhaul and building a new set of wheels we can do it all. Give us a call or drop by to see how we can help you.
Address:
3847 Park Blvd
San Diego CA 92103
Call or Text us at 619-228-9220
Shop Hours
monday through friday
10 AM to 6 PM
Saturday Sunday
10 AM to 5 PM
Beginning December 2024 we will be CLOSED TUESDAYS.
Service
Bicycle Service is currently caught up so now is a great time to get your bike in for the service you have been putting off or didn’t want to do yourself.
We are a Canyon Approved Service Provider. Feel free to reach out with warranty or maintenance issues.
To ensure service on a particular day you should make an appointment. Otherwise feel free to bring the bike in for an assessment. If choose to do so you may leave the bicycle with us until the service date or bring it back in on the service date.
We offer financing through Synchrony. Several financing options are available, with up to 18 Months Zero Interest plans available. You can apply for an account online or in store. If you already have a Synchrony Sporting Goods account you can use that account with us.
Clicking the button below will take you to a Synchrony application information page. There is no obligation to apply.
New Things In The Shop
Knog Scout Bike Alarm & Finder Sale $45 (Reg $60)
In stock now!
Once armed, any movement of a Scout fitted Bike will trigger the motion-sensitive audio alarm discouraging any further movement and alerting the bike’s owner, both by the sound of the alarm and via a notification that is automatically sent to the owner’s iPhone (when in Bluetooth range).
Then in a scenario where a bike fitted with Scout is not where the owner has left it, it can be located using Apple’s network via the ‘Find My’ app.
Compatible with iOS only (Android avail soon)
Motion-sensitive 85 db audio alarm for immediate deterrence
Can be located quickly using Apple's 'Find My' app
Operated using Knog iOS app
Mounts to standard water cage braze-ons
Can be mounted under water bottle cage for discretion
Use supplied anti-tamper screws to mount securely
Neon silicone cover provided to advertise security device (if desired)
Arm / disarm using button (within 5 ft) on app within bluetooth range
LEDs show alarm status & battery charge
USB-C rechargeable with 2 to 6 month battery life (pending usage)
Low battery notifications when you have just 20% remaining
Water resistant IP66 rating (wash-proof)
Weights just 0.88 oz
USB-C cable is not included
DYNAPLUG
Dynaplug® was designed as an easy-to-use solution for DIY tubeless tire repair. In fact, this DIY solution will make fast, permanent repairs on 98% of all tubeless punctures. It doesn’t require any reaming, chemicals, adhesive or waiting time. Simply remove the puncture object and insert the repair plug. Made in Chico, CA.
Easy Repair without removing the tire - Unlike other tubeless tire repair kits, Dynaplug® allows you to repair a puncture without removing the wheel/tire from the vehicle. This especially saves time and effort in an emergency situation.
Low Insertion Force - The shape and size of the penetrating tip allows for easy penetration of most punctures. It's even easier to insert a second plug (when needed) because the first plug lubricates the hole.
No Reaming of the Puncture Hole- Because of the low insertion force, it is not necessary to enlarge a puncture hole by reaming. This eliminates the need for a second tool and prevents further damage to the tire caused by reaming the hole to a larger diameter with abrasive tools used in other types of external repair. No Glue Required - After use, tubes of glue dry out in a short time and when you need it again it's not there. Because Dynaplug® retains its sealing ability indefinitely both during storage and in the tire, no glue is required.
Long Lasting Puncture Repair - Viscous rubber of the plug will flow slightly after the plug is in place. This fills small fissures or voids that radiate from the puncture hole into the casing and ensures a long lasting repair.
Cavity Handle for Storage - The cavity handle of Dynaplug® allows for convenient storage of plugs and accessories in a neat and clean way suitable for the glove box.
The old shop. Come see the new one next door!
Testimonials
“Great technicians, high quality work, excellent service, really great people in general. They have also charged me below their original estimate in a few previous repairs. I ride both enduro and DH bikes and sometimes don’t have the time to do more involved maintenance (shock/fork servicing, wheel hub rebuilds, brake bleeds, etc). MJ’s is the one and only shop I will go to in my neighborhood for bike service.”
“The customer service is top notch. I walked in about 30 minutes from closing time on a Friday so I wasn’t expecting much. Scott helped me with two bikes that I borrowed from family and helped get them in shape for me. He also helped about 4 other customers while working on my bikes and it was a pleasure to see how he cares for each customer.
While I’m not an avid bicycle rider, I will be going back here for any bike needs. ”
“I was in the area and seeking some new spinning/cycling shoes and advice on extensor tendonitis that I have been experiencing. I did not know whether it was caused from running, stepping, or cycling. Nevertheless, Google maps pointed me to a very highly (customer rating) rated shop named “MJ’s Cyclery”. Bottom Line: Beyond my expectations were met - I received expert fitting advice and a wonderful story of how these two awesome store owners met and started a wonderful business. I took their advice and tried new shoes and new recommended techniques and after 90 minutes of intense cycling, no pain. Please go out of your way to visit them - this is a high-tech yet old school customer service and genuinely care about the customer business!!! ”
“We were looking for a bike shop to tune up our bikes and most of the ones we walked into seemed like they couldn’t be bothered.
MJ’s was DIFFERENT. The people in this bike shop are FRIENDLY, REAL and UNPRETENTIOUS. It’s a shame more bike shops aren’t like MJ’s because people would be drawn to joy of cycling if bike shops were as friendly and helpful as these guys and gals. THANK YOU for tuning up our bikes, the great service and getting us back in love with our bikes.”
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Our goal
When we opened we knew we wanted to be the shop anyone would feel comfortable visiting. I think we did that pretty well. We’ve gotten a bit bigger but we are still a relaxed shop that promises excellent and friendly service.
About The Owner
scott armstrong
I first started working on bikes in 1986 when the then owner of The Chain Gang Bike Shop in Redding CA let me start helping out around the shop to work toward a new mountain bike. I don’t have that bike anymore but I do have the love of bikes I learned from the men and women at the shop. Until we opened MJ’s in 2013 I had never had a paying job in the industry. I have been lucky to have top notch mechanics as friends who have helped me hone my skills working on my own bikes and eventually doing small jobs for friends.
In 2012 I received a Professional Repair and Shop Operation certification from the United Bicycle Institute in Portland, OR.
I have been a core staff member of the SoCal High School Cycling League since 2011. In 2015 I received the NICA Clif Bar Volunteer Service Award.
Brands We Love (And Sell!)
This list includes many but not all of the brands we sell on a daily basis. We love the hear about the brands our customers like so please tell us if there is something you would like to see here in the shop.
