I've visited Bill for his work on two different motorcycles and his work has been both expert and thorough. He is a great local resource and one of the really good guys I've encountered in 40 years of bike ownership! read more

I had bent my front hand brake lever and needed it replaced. Looked for repair places on Yelp as I'm new to the area and Quality Motorcycles came up. Truth be told, this isn't a rocket science repair job and I'm sure that *any* place could have done the job with no problem. I mean, it's trivial. I called and told him what I needed. He called back and said he'd heard what he needed from my message and the replacement handle would be in the next day. He doesn't get to his shop until 11:00 or such, so I dropped it off earlier in the day and just left it outside his door. (After all, this was a brake lever, he didn't even need the key.) He called back to say it was done and I paid w/ Visa over the phone ($22 bucks all in.) I came by around 10pm that evening expecting to just pick it up and go. However he was there in his shop so we had a nice chat, he suggested better ways of rolling my bike backwards down steep hills, and had replaced a broken turn signal cap free of charge. Nice guy, works alone, orderly shop and has a great reputation. I'll go back. read more

Bill at Quality Motorcycle is the best! I bought my 1982 Suzuki 1100 E at Motorcycles Unlimited in Corte Madera in the 80's, and about ten years ago they refused to work on it because it was too old! Despite the fact that I had bought it from them! Thankfully, this event opened up the new door of finding Quality Motorcycles. I am impressed with Bill, and his work. I recommend Quality Motorcycle for all of your motorcycle repairs! read more

Bill D of Quality Motorcycle Repair is the best (honest and experienced) mechanic I have ever done business with in my entire life riding motorcycles since the 80's! Mechanics should take lessons from Bill D. He is honest, and a true expert when it comes to motorcycles. He will not charge you exhorbitant fees, or unnecessary work and will oftentimes offer some advise before you decide to bring in your bike. He is patient, and always listens to customers, and knows exactly what is wrong with the bike. He will try to save you money and he knows exactly what the problem is...he has tons of experience with all types of bikes, old and new. He repaired my bike for a fraction of the cost, after getting it back from a San Francisco Mission District repair shop who overcharged me and did not even repaired my bike! Bill D. of Quality Motorcycle saved me and my bike! I will always be loyal to Quality Motorcycle ...Bill is a rare breed. An honest, experienced mechanic, who will not charge you an arm and a leg, and will even give free advise to help customers save money. I live in SF now, but would not mind driving the extra mile, because I know, my bikes will always be in good hands! Thanks Bill! read more

Bill restored my Kawi 650r after I dropped it on pavement recently. It was a non-insurance job and he was great about recommending what to replace and what to let go. I'm mechanically minded but a real newb on bikes and he's been great about helping me out. read more

You won't find a better motorcycle mechanic in Marin County! Fair priced, years of experience, and fast - definitely a go to for your motorcycle troubles. I have stopped by here to replace my rear tire for my V-Star and was satisfied by how fast it took. Appointments aren't required, however very appreciated. Every time I've stopped by he's been busy with plenty of bikes ranging from Harleys to Hondas, so why not give a quick call before you head over! read more

I really like Bill. His prices are very fair, he is competent, and an interesting person. A bit of a curmudgeon, but I like that. He fixes my stuff and I am trusting my life to his work. He won't let you down. read more

I had a great experience getting my little scooter serviced, the owner Bill is as nice as they get, honest, fair, and really looks out for the interest of his customers. He told me he was normally very busy, about two weeks until the next appointment, but managed to squeeze me in to solve a potentially dangerous gasoline leak, because, even though that was a small job, it could be catastrophic. I wish every shop was like this. read more

Quality Motorcycle Repair is the only place I will have my bikes worked on! Pretty sure Bill has saved my life a few times by repairing other folks mistakes. Mistakes I never noticed, but he did. Very competent and knowledgable guy. Fair prices with excellent service! read more

Bill is amazing. He works really hard, and is an expert at what he does: motorcycle maintenance and repair. I while ago, I took my bike to him with a flat. He repaired the tire immediately and I went on my way. I took the bike back to him the other day to get the chain and sprockets replaced. My 13 year old bike feels like a new machine. Awesome. Thank you. I highly recommend Bill to anyone who cares about their motorcycle and wants real quality service from a great guy who truly knows his stuff. read more

I've taken my BMW motorcycle to Bill Dietrich at Quality Motorcycle since 2006. His prices have gone up a bit, but he still delivers exactly the level of work I need. He never tries to sell me more than I have asked for, and has been incredible at quick service. I had waited for up to several weeks for BMW SF to repair my bike, but Bill almost always gets the work done the day I bring my bike in - and I rarely call ahead of time. Count on the highest level of integrity in service. For those of us who are not mechanics, that is more important than almost anything. read more

Read good reviews about this joint. Unfortunately they don't know how to open their shop on time as advertised. Bummer

Bill is awesome. Fixed up my ride quickly as possible and did his best to help out in anyways he could. Very honest and good mechanic!

Excellent, professional service at the right price. This is the second motorcycle I'm getting serviced by Bill and even though he's super busy he finds time for me when I need something done urgently. read more

Got a flat coming over the GG bridge. Bill helped me out without hesitation, no wait at all. Thank you bill, great service.

Bill is an honest and thorough mechanic--he got my Vstar running perfectly after a tuneup. He's a lot of fun to talk to as well. Will be bringing my bike back here for all of my service in the future. read more

never been there ...can he work on BMW or MOTO GUZZI??? Hate to take bikes to city..all ripoffs there. $250 for a tuneup just to b told they need more time..oh, they did turn up the idle...oh by the way..they did tell me to look up my problem ( sputtering on downshift) on the moto forums..i might find the answer there. I did. fixed it myself! read more

Bill not only fixes bikes but Vespas too. I tried all the guys in the city and SF motor scooter in Corte Madera (no longer there, go figure!) . Quality got the job done. Thanks, Bill read more

I have been going to Quality Motorcycle for two decades. Since Bill bought the shop about 12 years ago, the service has never been better. He is a very capable and honest mechanic whom I trust and appreciate. His prices are extremely fair and his responsiveness to helping riders with emergencies is exemplary. Did I mention he has killer music on his stereo? Thanks Dietch! read more

Bill is awesome. Great service and prices. I fully agree with the rest of the comments. His work is inexpensive, honest, and done right.

Bill, Bill, Bill... Nobody but Bill ever touches my 919! sullen, grumpy, sociopathic, Bill loves your ride, more than you do. He'll tell you how to pop a wheely, make you feel like a turd for treating your machine badly, but... He loves your ride more than you do.... And what else would you ever want in the man that keeps you up on your two-wheeled death machine... Nobody will ever touch my ride except me and Bill... Unless he dies... Or I do... read more

Bill has always been a great guy, quickly repairing those issues that are beyond my skill level or to time consuming to attempt. This week, he literally mounted new tires for me and had me back on the road in 2 hours. Also, he looks like Ted Nugent, but without the stupidity. read more

Bill is insightful and interested. Always has done a superb job with my triumph. Highly recommend.

Bill just did a great job swapping some supermoto wheels onto my '99 Yamaha WR400F! I bought a used set of wheels on craigslist that were originally mounted on a YZ and from what I had researched should have bolted right up. Long story short, they didn't. Bill custom machined some wheel spacers for my bike from KTM parts he had on hand and got the wheels to fit perfectly. When I picked my bike up he told me about some other issues it had and how I could fix them myself to save some money (he also offered to do the work himself if I wanted). He then went on to totally UNDER CHARGE me for the work! Whenever I have motorcycle work that is beyond my abilities I will take the bike to Bill. read more

If like me you appreciate having work done competently and being treated fairly, this is a great local resource. He's done work on my Kawasaki W650 (decidedly old tech) and on my newish Honda Interceptor and both visits were as scheduled and fairly priced. I needed a battery in a hurry and called Bill. He had the battery and said if I'd give him a couple of hours he'd have it ready and charged. Because it was local, I didn't bother asking the price, but figured he deserved a fair profit for having it in stock. To my delight, the delivered price was just $10 more than I could buy it on Amazon. He's a one-man shop, so don't visit him with the idea that you're going to get a half hour of bench racing conversation as he does not have the time. It is truly a pleasure to deal with a straightforward business, particularly when the moto repair field has its fair share of bad/incompetent/overpriced mechanics. If you do get a few minutes for an audience, he's a really bright and interesting guy - a real moto guy. Thanks, Bill! read more