I Go here for vapor honing vintage motorcycle parts. great service!!

Lossa Engineering was the perfect place for me to get my transmission cover! The website was very easy to use and my product came on time. Lossa has a lot of great variety for motorcycle parts, so I recommend purchasing from them!

I have never seen such a wide collection of vehicle parts like Lossa Engineering. Their website is very clean and easy to navigate, so I ended up buying a Triumph ribbed bench seat on the site. The seat came and it was very clean and fresh, and the seat was perfect for my bike size. All of Lossa’s parts were very affordable and they have a part for every need!

Finding a good motorcycle headlight can be hard, especially when they are so many types to choose from. Thankfully, Lossa Engineering had one for my bike that was priced well and very good. It fit perfectly for my motorcycle and I am so glad it came earlier than the promised delivery date.

Lossa Engineering was where I got my anti-gravity battery, and it is the best one I have ever used. The battery was much cheaper than the ones I looked for at different shops, so I bought it. I am happy with the purchase and my motorcycle runs very smoothly thanks to Lossa.

I recently bought a universal steering stabilizer from Lossa Engineering, and it has been working perfectly for my motorcycle. I love all of Lossa’s products, and their quality is top notch. If you are looking for amazing motorcycle parts, Lossa Engineering is the best place for what you need.

Nice they have a very talented painter air brush some of the nicest Ive ever seen. A real artist at work

I ordered Emgo Classic Shocks from Lossa’s website and the price point was very affordable. I bought the shocks and I have no complaints at all. The shocks are well made and came very fast, so my motorcycle is in great shape now.

Picked up CB550 fork tubes since mine needed replaced. Jay’s got plenty of spare vintage Honda parts

Cool place! I wish I could afford them to build me a custom motorcycle.

Im a woman in my 50s and short. I bought a really cute motorcycle so I could learn how to ride but, I couldnt reach the gear shifter or the rear brake pedal. My boyfriend and I took the bike to Jay at Lossa Engineering and he was able to custom fabricate some parts to move those controls back for me. I was very anxious to have this work done quickly and I wasnt disappointed. He completed the job within a day and a half for what I feel was a very reasonable price. Thank you to Jay and his staff for helping an old girl out!

Ordered a bike in feb of 2012 paid thousands in deposit was told it would take about 6 months. Have been patient because he was ill for a while. But for the past couple of years they have not responded to a single voicemail or email i left and sent. I have kept all the records of emails and conversations and finally will pursue this legally after running out of patience for 7 Years!!! No one deserves to be ripped off and completely and blatantly ignored. Buyers BEWARE.

Called multiple times this week in the middle of the day. Never answers the phone and “voicemail is full” message makes me think he never does. Filled out the online form as well to ask a few questions about mufflers they sell online - five business days later and still no response. Took my business to Dime City Cycles instead as these guys don’t seem to need it.

Great guys & talented as well. This is the spot for cafe racers, Triumphs, Honda, etc. They just dont answer the phone much, so you have to take your bike down there for service or order parts fron the website. They have some rad bikes for sale & a cool show room that makes the trip for service interesting.

Do not ever take your Motorcycle to this shop for any type of modifications!!!! He completely ruined a brand new Harley. We have spent over 18k repairing the damage his shop did to the bike.

Read the reviews on yelp and do not go here. He did exactly what everyone else said and asked for a huge payment upfront. Then he proceed to just lie to me and didnt do the work I paid for in advance.

Came in just for a quote. Veryyyy reasonable. Might be too early for a 5 out of 5 but the owner was really nice and patient.

Best shop around for personal and custom service! Cafe specialist willing to work with you to achieve your dreams.

This guy (Jay Larossa) is a thief and a fraud. Contracted with him for a custom motorcycle in February 2016 and paid him in full (half down in 2016 and half in October 2017). The bike was finally delivered in July 2018 and arrived with catastrophic mechanical failures and no title (contract included a clean title). The guy hasnt responded to emails since Sep. 2018 and wont take phone calls. The CA DMV informs me that Larossa has made no attempt to clear the existing title or transfer it into his name. Larossas last response to me -- he told me to sue him! Stay away. Do not do business with Lossa Engineering or Jay Larossa. If anyone knows a phone number for this guy please post it!!!

Super talented builder with an incredible eye for design.

Best custom motorcycle shop in socal.

Jay is great!

Hi everyone, I purchased a complete exhaust for honda cb, I was really disappointed, I ordered it in a certain way and it came in the wrong color and whats more with the fixing bracket totally wrong and welded in the wrong place .. !! I asked to pick up the package at their own expense and to send me a correct unloading as requested, but obviously I had to pay for everything myself, and moreover they answered me by saying buy the thinner and remove the black color after spending a lot more customs duties..!! DISAPPOINTED