Jon-David Tok turns passion for bikes into mobile repair service
By Joey Caraway, September 15, 2026
Always ready for the next job, mechanical engineering student Jon-David Tok’s truck sits packed with tools to repair each bike that comes his way.
Tok turned his six-year interest in fixing bikes into a full-time job, sometimes working 50 hours a week and fixing 50 to 100 bikes per week during the busy season.
According to Tok, he learned how to fix bikes alongside his dad, who first lent him his tools and was always there to support him. He later turned that passion into a job, working at a bike shop doing repairs.
“I already knew how to work on bikes by myself, but it’s very different, working on your own stuff versus working in a shop environment,” Tok said. “It really showed me all the business skills, managing customer interactions and kind of scheduling and everything too.”
After working at a bike shop, Tok started his own business during his senior year of high school in November 2025 as the sole owner and operator of OC Mobile Bike Mechanic, fixing bikes across Orange County.
Following his recent enrollment at CPP for the fall semester, he now serves the campus area, according to his website. Even though most of his customer base is in Orange County, Tok said he has already secured clients at CPP.
“We mainly do bike repairs just because we’re completely flooded,” Tok said. “I decline about 30% of calls just because I can’t handle that much volume … But, if someone at Cal Poly Pomona, if they have e-scooter problems, if they have bike problems, we will help you out, because we’re already here.”
Tok’s services differ from other brick-and-mortar bike repair shops by going to the client, eliminating the need to travel with a large, broken bike.
Tok said he enjoys providing people with great service and saving them the time it takes to drive back and forth from a bike repair shop. He said he also enjoys seeing the excitement on his customers’ faces when their bikes are quickly repaired and ready to ride without taking it to a shop.
Srikanth Sherman (‘95, electrical engineering), a former client of Tok, said his services were valuable for those who do not have the time to travel and wait for bike repairs.
“The mobile thing is awesome,” Sherman said. “He does it on your schedule, he comes to your house, so you don’t have to drive the bike everywhere, and that’s great.”
Sherman said his wife was looking to get her bike fixed, and they both turned to Tok. After describing the type of bike upgrades his wife wanted, Tok was able to customize and tweak it based on her needs.
When comparing prices, Sherman said other bike shop repair services were pricey compared to Tok’s, making his services hard to beat, especially in times of need.
In Tok’s original Reddit post on r/CalPolyPomona advertising his services, he said the most common thing he sees is a bike locked to a rack for a whole semester because of a flat tire, despite it only being a 15-minute fix.
Depending on the repair, it takes an average of one to two hours, with tune-ups averaging 20 to 30 minutes, according to Tok. With the convenience of his truck storing most of his parts and tools, Tok can set up appointments by calling or texting his number directly at 949-680-9070. According to his website, clients will receive a straightforward quote, and depending on availability, Tok can make same-day appointments.
According to Tok, the most difficult part of being a mobile bike mechanic is diagnosing repairs on the spot and working with the limited tools he has in his truck.
“Sometimes you just have to improvise and solve problems because you don’t have the resources that brick and mortar does,” Tok said.
If the repair becomes too time-consuming or complicated, Tok said he will refer the customer to other bike shops. According to Tok’s website, his services include flat repair, tubeless setup, brake adjustment, hydraulic brake bleeding, derailleur tuning, basic tune-ups, chain replacement and drivetrain overhauls, along with custom builds, which require a price quote, and complete overhauls, with prices ranging from $15 to $350.
Broadening his business with the ability to work on most bikes, Tok partners with online suppliers to obtain the appropriate parts, including Cycle Sport USA. Tok said he also recently partnered with one of his friends, CEO and founder of On Edge Components Victor Gee, who offers boutique CNC-machined bicycle parts and suspension rebuilds.
“I have more of a shop space and so I can really do the things that can’t really be done on the road,” Gee said. “So, I’m doing mostly suspension and as far as supply and parts goes, some of my main products like hose kits and those more specialty items, if he needs those, then he can get them from me.”
Gee said he met Tok in 2018 at a local bike race venue where they learned they were in the same class at school. Although their partnership is new, Gee said Tok knows how to work with and understand the customers’ needs.
According to Gee, that personable experience that Tok provides to the local community is what sets him apart. He said working in the same area allows Tok to get to know the local customers and build relationships while providing quality service.
“He’s very honest and upfront,” Sherman said. “I liked the fact that he’s just like, ‘I don’t know about this. Let me look into that and get back to you.’”
From riding and racing bikes in the community to helping the same local area and its people, being a mobile bike mechanic isn’t Tok’s only endeavor. Tok also operates a booth at the Newport Harbor Certified Farmers’ Market and provides fleet maintenance for Irvine’s bike-share program, operated by Drop Mobility, according to his website.
Tok’s farmers market booth operates every Saturday from 9 a.m. to 1 p.m., offering free inspections and on-the-spot fixes to flats, loose bolts, brake and derailleur adjustments all while interacting with the local community. Projects that require full mobile appointments can also be made at the booth, according to his website.
Offering fleet repair service for Irvine’s bike-share program is his largest ongoing account, while also providing fleet repairs for apartment communities, HOAs and corporate campuses across Orange County, according to Tok’s blog.
According to his website, Tok’s fleet services provide bulk pricing and a mechanic who comes to a client’s property, eliminating the hassle of bringing a truckload of bikes to a shop. Fleet service tiers range from one-time assessments of every bike in a fleet to monthly and quarterly visits, while still being on call for any urgent repairs.
“The goal is to scale this up, eventually hire people and then step back into a more management role and generate passive income and then figure out what other businesses I want to start too,” Tok said.
According to Gee, they both look to grow long-term and put together a full-service, one-stop shop available to the local community. Tok would continue offering mobile services while bikes that required more complicated repairs would be fixed at the shop, all done by two companies joined together.