Description
1975 CZ 175 Type 477
Concours Frame-Up Restoration by Dr. Bill Bucholz
No Expense Spared ~ Better Than Brand New
Roy Thacker Collection – 3 Miles Since Restoration
Up for auction is the crown jewel of the legendary Roy Thacker Collection—a CZ 175 Type 477 restored to a level that exceeds factory new in every way.
Roy owned over 120 museum-quality motorcycles. This was the very first bike he ever owned, and the one that sparked his lifetime passion for motocross. When it came time to restore it, Roy spared absolutely no expense and entrusted it to renowned restorer Dr. Bill Bucholz, one of the finest craftsmen in the country.
The result is a no-expense-spared, concours, frame-up restoration that stands among the finest CZ restorations on the planet.
THE RESTORATION – BETTER THAN NEW
This is not a cosmetic refresh—this is a true nut-and-bolt, frame-off, museum-grade restoration:
-
Frame completely stripped, prepped, and refinished to show quality
-
All painted surfaces finished with multiple coats of color and clear, then wet-sanded and polished
-
Every chrome component triple-plated (show-quality “best level” chrome), including hardware that wasn’t originally chromed for added brilliance
-
Wheels fully restored with re-chromed rims, new spokes, vapor-honed hubs and refinished centers
-
Suspension components disassembled, restored, and re-finished
-
Saddle professionally reupholstered to concours standard
-
All controls, levers, pegs, linkages, and hardware restored or replaced
Even small details—like the chromed magneto box, axle hardware, footpeg mounts, shifter, and fasteners—reflect Dr. Bill’s signature level of craftsmanship. The speedometer has been restored and shows just 3 total miles since completion.
This bike is a rolling work of art.
MECHANICAL RESTORATION – FULL CRANK-UP REBUILD (JUST COMPLETED)
After sitting as a display piece in Roys Private Museum, we performed a complete mechanical recommissioning and engine rebuild to ensure it runs as beautifully as it looks.
Work performed includes:
-
Full engine removal and teardown
-
Crankshaft trued and rebuilt by professional machinist
-
New crank seals, labyrinth seals, and all engine gaskets replaced
-
New clutch basket (inner & outer) and hardware
-
New seals throughout (kickstart, speedo cable, oil pump, etc.)
-
Carburetor cleaned and tuned
-
Electrical system sorted and tested
-
Fuel system cleaned and restored
-
New battery, spark plug, and fluids installed
51 hours of professional shop labor went into the mechanical work alone, totaling over $9,000 in recent service and parts WE just invested.
The result:
The engine is now mechanically dialed to the same level as the cosmetics.
For optimal reliability, the bike is currently set up to run on pre-mix fuel (like a modern two-stroke). The original oil-injection system has been serviced and cleaned but is not being used to increase reliability.
MILEAGE & CONDITION
-
Total miles since restoration: 3 miles
-
~1.9 miles from Dr. Bill after completion
-
~1.1 miles from our testing and verification
It is, in every sense, a fresh, concours restoration with verified mechanical integrity.
ABOUT THE MODEL
The CZ 175 Type 477 is one of the classic Eastern-Bloc motocross machines that helped define motorcycling in the 1970s. Known for their rugged durability, unique engineering, and unmistakable style, these bikes are increasingly collectible—especially when restored to this level.
The ingenious fold-out shifter that doubles as a kickstarter is one of CZ’s coolest design features and is fully functional on this bike.
PROVENANCE – ROY THACKER COLLECTION
-
This was the First motorcycle ever owned by Roy Thacker
-
Part of a 120-bike world-class collection
-
Restored as a personal, sentimental project with no budget constraints
-
Displayed in a private museum and never ridden after restoration
Roy recently sold his collection as he embarks on a new chapter—traveling the world by ship—making this a rare opportunity to own one of the most meaningful pieces from his lifetime collection.
OUR STANDARDS
At Kaplan Cycles, we don’t just sell vintage motorcycles—we fully vet, service, and stand behind every machine.
-
Over 15,000 eBay sales with 100% positive feedback
-
Nationally recognized restoration and sales facility
-
Museum-level showroom and service department
-
Full disclosure and transparency on every bike we sell
When you buy from us, you’re buying with confidence.
WHAT YOU’RE BUYING
You are bidding on a museum-quality, concours-level 1975 CZ 175 that has:
-
Over $15,000+ invested in restoration
-
Over $9,000 in recent mechanical recommissioning
-
Only 3 miles since completion
-
Provenance from one of the most respected private collections in the country
This is not just a motorcycle—it is a piece of motocross history and a work of mechanical art.
QUESTIONS?
Call us anytime at Kaplan Cycles with questions, additional photos, or video walk-around requests. We are happy to assist serious collectors worldwide with shipping, crating, and logistics.
Thank you for looking and God Bless America.
WHY SHOULD YOU BUY FROM KAPLAN? WHAT DO YOU GET?
“You are buying from the Kaplan Cycles Family. We are not just another big auction house. We are family-owned and operated and have been buying, servicing, and selling motorcycles since 1975. You will work directly with Ken Jr., Ken Sr., and/or one of the 22 experts on our team. We provide museum-quality, white-glove concierge service from start to finish. Every motorcycle we sell is inspected, serviced, and supported by our team, and we stand behind it after the sale. You’re not on your own — we back what we build and what we sell.
With over 17,000 units sold and still 100% positive feedback, we are the best stress-free buying experience you can have. From the first call to delivery at your door, we will handle it all — because vintage motorcycles deserve support, and so do you.
With every bike we curate you get:
• museum-level inspection & preservation services
• every machine is professionally evaluated, serviced, & rotisserie detailed
• all critical systems are checked, adjusted, or renewed
• you get professional setup, tuning, and delivery prep
• done by the best experts in the industry — we ride and restore every day
• you get post-sale phone support
• you get white-glove, insured, always-enclosed shipping to your door anywhere in the country
You’re buying from Kaplan Cycles at the New England Motorcycle Museum, one of the largest vintage motorcycle collections in North America. Free museum tours and tickets are included with every bike sold. With every bike you purchase, a portion of the proceeds is used to support, continue, and improve the 501(c)(3) nonprofit New England Motorcycle Museum.
You don’t just win an auction — YOU are creating & helping to preserve motorcycle history, and you become part of our family, a Kaplan Cycles client for life.
We do not take new clients off the street.
We do not service bikes purchased elsewhere.
We only take new exclusive clients who purchase a motorcycle from us.
You get a guided purchase experience with, and from, the experts who care about the bike as much as you do. If there’s a problem, you don’t get ghosted. You call us — you will have our cell phone numbers — we will answer your call on weekends, and we will help make it right.
Auction platforms = listing only. No support. No accountability.
Kaplan Cycles = we stand behind what we sell.
You are buying museum-curated provenance. That means:
• expert evaluation
• documented condition
• professional presentation
• long-term preservation mindset
You’re not just buying a motorcycle — you’re buying a curated piece of motorcycling history.
From the #1 family in this business — Kaplan Cycles & the New England Motorcycle Museum.
Sincerely,
Ken Kaplan Sr.
12/28/2025”
AUCTION TERMS:
All motorcycles & vehicles are sold as-is where-is.
Kaplan Cycles guarantees all motorcycles are as-described. Please read the entire description and watch the entire video before bidding.
A non-refundable deposit is due immediately on purchase. PayPal or Credit Card is accepted for the deposit.
Cash (In-Person), Card (+3% fee), or Wire Transfer are our only accepted forms of final payment.
Full payment must be made within 7 days of auction close.
Your motorcycle must be picked up within 30 days of auction close.
Exceptions are made only for international buyers OR buyers who have ALREADY made transport arrangements with a third party.
If a motorcycle is purchased and left here for longer than 30 days without written permission from Kaplan Cycles it will be resold. In the case of a re-sale, the owner will be entitled to a refund less storage fees ($25/ day beginning 30 days from auction close) ONLY if the motorcycle was paid in full on-time within the auction terms.
We always describe our motorcycles as accurately as possible.
You are purchasing a classic motorcycle. Even in cases where a bike may be in good running/ operating condition, new problems & idiosyncrasies can arise over-time from sitting or regular use.
If you have an issue with the motorcycle you’ve received, contact us within 24 hours of delivery and before leaving feedback so that we can address your concerns.
It is important you have at least a basic mechanical knowledge before purchasing and operating a classic motorcycle.
Due to our backlog, we cannot perform any additional service work or modifications on your motorcycle after the sale (ie; adding a light kit, different tires, etc.)
We respond quickly between the hours of 9am and 5pm EST, Monday - Friday
For our fastest service please call Ken Kaplan Jr directly at 860-471-0192
We will not charge out-of-state buyers sales tax.
Out of state residents will pay sales tax with their DMV.
We are not a registering dealership. You will receive only the documents required to register your vehicle in your state.
In our listings, title status is always listed directly below the main description.
In some cases we will sell motorcycles without title or registration. In these cases we guarantee all motorcycles sold are free and clear. We will always provide a route to obtaining title. Generally in these cases, the motorcycle will be sold at a discount to accommodate expenses involved.
Documents are mailed via USPS priority mail with a tracking number. Please allow up to 14 days after payment in full for your documents to be processed and mailed.
Keys will be shipped with the motorcycle.
Warranty:
All Motorcycles sold "as is, where is" and Kaplan Cycles does not warranty any motorcycle sold. No express warranty and/or implied warranty are made by Kaplan Cycles. No statements by us give an implied warranty.
SHIPPING:
SEND US YOUR ZIP FOR A SHIPPING QUOTE!
WE WILL MAKE ALL ARRANGEMENTS!
We have the best shipping contacts in the nation who will provide the FASTEST transport times, have a perfect track record, and are always insured and ENCLOSED! All motorcycles are shipped WHOLE (roll-on, roll-off). We do not offer a pallet or crate service.
International shipping specialist contacts are available! They will assist in ground freight, customs clearance, and ocean freight to your country. International buyers will be required to work directly with our third party shipping contacts.
We strongly recommend you insure your motorcycle at the time of purchase.
PICKUP:
We require a 24 hour notice prior to pick-up. Please call us at 860-454-7024 during office hours Monday – Friday 9am – 5pm EST.
We will provide ramps, a dock for loading, and assistance to load for free.
Wheels
1975 CZ 175 Type 477
Concours Frame-Up Restoration by Dr. Bill Bucholz
No Expense Spared ~ Better Than Brand New
Roy Thacker Collection – 3 Miles Since Restoration
Up for auction is the crown jewel of the legendary Roy Thacker Collection—a CZ 175 Type 477 restored to a level that exceeds factory new in every way.
Roy owned over 120 museum-quality motorcycles. This was the very first bike he ever owned, and the one that sparked his lifetime passion for motocross. When it came time to restore it, Roy spared absolutely no expense and entrusted it to renowned restorer Dr. Bill Bucholz, one of the finest craftsmen in the country.
The result is a no-expense-spared, concours, frame-up restoration that stands among the finest CZ restorations on the planet.
THE RESTORATION – BETTER THAN NEW
This is not a cosmetic refresh—this is a true nut-and-bolt, frame-off, museum-grade restoration:
-
Frame completely stripped, prepped, and refinished to show quality
-
All painted surfaces finished with multiple coats of color and clear, then wet-sanded and polished
-
Every chrome component triple-plated (show-quality “best level” chrome), including hardware that wasn’t originally chromed for added brilliance
-
Wheels fully restored with re-chromed rims, new spokes, vapor-honed hubs and refinished centers
-
Suspension components disassembled, restored, and re-finished
-
Saddle professionally reupholstered to concours standard
-
All controls, levers, pegs, linkages, and hardware restored or replaced
Even small details—like the chromed magneto box, axle hardware, footpeg mounts, shifter, and fasteners—reflect Dr. Bill’s signature level of craftsmanship. The speedometer has been restored and shows just 3 total miles since completion.
This bike is a rolling work of art.
MECHANICAL RESTORATION – FULL CRANK-UP REBUILD (JUST COMPLETED)
After sitting as a display piece in Roys Private Museum, we performed a complete mechanical recommissioning and engine rebuild to ensure it runs as beautifully as it looks.
Work performed includes:
-
Full engine removal and teardown
-
Crankshaft trued and rebuilt by professional machinist
-
New crank seals, labyrinth seals, and all engine gaskets replaced
-
New clutch basket (inner & outer) and hardware
-
New seals throughout (kickstart, speedo cable, oil pump, etc.)
-
Carburetor cleaned and tuned
-
Electrical system sorted and tested
-
Fuel system cleaned and restored
-
New battery, spark plug, and fluids installed
51 hours of professional shop labor went into the mechanical work alone, totaling over $9,000 in recent service and parts WE just invested.
The result:
The engine is now mechanically dialed to the same level as the cosmetics.
For optimal reliability, the bike is currently set up to run on pre-mix fuel (like a modern two-stroke). The original oil-injection system has been serviced and cleaned but is not being used to increase reliability.
MILEAGE & CONDITION
-
Total miles since restoration: 3 miles
-
~1.9 miles from Dr. Bill after completion
-
~1.1 miles from our testing and verification
It is, in every sense, a fresh, concours restoration with verified mechanical integrity.
ABOUT THE MODEL
The CZ 175 Type 477 is one of the classic Eastern-Bloc motocross machines that helped define motorcycling in the 1970s. Known for their rugged durability, unique engineering, and unmistakable style, these bikes are increasingly collectible—especially when restored to this level.
The ingenious fold-out shifter that doubles as a kickstarter is one of CZ’s coolest design features and is fully functional on this bike.
PROVENANCE – ROY THACKER COLLECTION
-
This was the First motorcycle ever owned by Roy Thacker
-
Part of a 120-bike world-class collection
-
Restored as a personal, sentimental project with no budget constraints
-
Displayed in a private museum and never ridden after restoration
Roy recently sold his collection as he embarks on a new chapter—traveling the world by ship—making this a rare opportunity to own one of the most meaningful pieces from his lifetime collection.
OUR STANDARDS
At Kaplan Cycles, we don’t just sell vintage motorcycles—we fully vet, service, and stand behind every machine.
-
Over 15,000 eBay sales with 100% positive feedback
-
Nationally recognized restoration and sales facility
-
Museum-level showroom and service department
-
Full disclosure and transparency on every bike we sell
When you buy from us, you’re buying with confidence.
WHAT YOU’RE BUYING
You are bidding on a museum-quality, concours-level 1975 CZ 175 that has:
-
Over $15,000+ invested in restoration
-
Over $9,000 in recent mechanical recommissioning
-
Only 3 miles since completion
-
Provenance from one of the most respected private collections in the country
This is not just a motorcycle—it is a piece of motocross history and a work of mechanical art.
QUESTIONS?
Call us anytime at Kaplan Cycles with questions, additional photos, or video walk-around requests. We are happy to assist serious collectors worldwide with shipping, crating, and logistics.
Thank you for looking and God Bless America.
WHY SHOULD YOU BUY FROM KAPLAN? WHAT DO YOU GET?
“You are buying from the Kaplan Cycles Family. We are not just another big auction house. We are family-owned and operated and have been buying, servicing, and selling motorcycles since 1975. You will work directly with Ken Jr., Ken Sr., and/or one of the 22 experts on our team. We provide museum-quality, white-glove concierge service from start to finish. Every motorcycle we sell is inspected, serviced, and supported by our team, and we stand behind it after the sale. You’re not on your own — we back what we build and what we sell.
With over 17,000 units sold and still 100% positive feedback, we are the best stress-free buying experience you can have. From the first call to delivery at your door, we will handle it all — because vintage motorcycles deserve support, and so do you.
With every bike we curate you get:
• museum-level inspection & preservation services
• every machine is professionally evaluated, serviced, & rotisserie detailed
• all critical systems are checked, adjusted, or renewed
• you get professional setup, tuning, and delivery prep
• done by the best experts in the industry — we ride and restore every day
• you get post-sale phone support
• you get white-glove, insured, always-enclosed shipping to your door anywhere in the country
You’re buying from Kaplan Cycles at the New England Motorcycle Museum, one of the largest vintage motorcycle collections in North America. Free museum tours and tickets are included with every bike sold. With every bike you purchase, a portion of the proceeds is used to support, continue, and improve the 501(c)(3) nonprofit New England Motorcycle Museum.
You don’t just win an auction — YOU are creating & helping to preserve motorcycle history, and you become part of our family, a Kaplan Cycles client for life.
We do not take new clients off the street.
We do not service bikes purchased elsewhere.
We only take new exclusive clients who purchase a motorcycle from us.
You get a guided purchase experience with, and from, the experts who care about the bike as much as you do. If there’s a problem, you don’t get ghosted. You call us — you will have our cell phone numbers — we will answer your call on weekends, and we will help make it right.
Auction platforms = listing only. No support. No accountability.
Kaplan Cycles = we stand behind what we sell.
You are buying museum-curated provenance. That means:
• expert evaluation
• documented condition
• professional presentation
• long-term preservation mindset
You’re not just buying a motorcycle — you’re buying a curated piece of motorcycling history.
From the #1 family in this business — Kaplan Cycles & the New England Motorcycle Museum.
Sincerely,
Ken Kaplan Sr.
12/28/2025”
AUCTION TERMS:
All motorcycles & vehicles are sold as-is where-is.
Kaplan Cycles guarantees all motorcycles are as-described. Please read the entire description and watch the entire video before bidding.
A non-refundable deposit is due immediately on purchase. PayPal or Credit Card is accepted for the deposit.
Cash (In-Person), Card (+3% fee), or Wire Transfer are our only accepted forms of final payment.
Full payment must be made within 7 days of auction close.
Your motorcycle must be picked up within 30 days of auction close.
Exceptions are made only for international buyers OR buyers who have ALREADY made transport arrangements with a third party.
If a motorcycle is purchased and left here for longer than 30 days without written permission from Kaplan Cycles it will be resold. In the case of a re-sale, the owner will be entitled to a refund less storage fees ($25/ day beginning 30 days from auction close) ONLY if the motorcycle was paid in full on-time within the auction terms.
We always describe our motorcycles as accurately as possible.
You are purchasing a classic motorcycle. Even in cases where a bike may be in good running/ operating condition, new problems & idiosyncrasies can arise over-time from sitting or regular use.
If you have an issue with the motorcycle you’ve received, contact us within 24 hours of delivery and before leaving feedback so that we can address your concerns.
It is important you have at least a basic mechanical knowledge before purchasing and operating a classic motorcycle.
Due to our backlog, we cannot perform any additional service work or modifications on your motorcycle after the sale (ie; adding a light kit, different tires, etc.)
We respond quickly between the hours of 9am and 5pm EST, Monday - Friday
For our fastest service please call Ken Kaplan Jr directly at 860-471-0192
We will not charge out-of-state buyers sales tax.
Out of state residents will pay sales tax with their DMV.
We are not a registering dealership. You will receive only the documents required to register your vehicle in your state.
In our listings, title status is always listed directly below the main description.
In some cases we will sell motorcycles without title or registration. In these cases we guarantee all motorcycles sold are free and clear. We will always provide a route to obtaining title. Generally in these cases, the motorcycle will be sold at a discount to accommodate expenses involved.
Documents are mailed via USPS priority mail with a tracking number. Please allow up to 14 days after payment in full for your documents to be processed and mailed.
Keys will be shipped with the motorcycle.
Warranty:
All Motorcycles sold "as is, where is" and Kaplan Cycles does not warranty any motorcycle sold. No express warranty and/or implied warranty are made by Kaplan Cycles. No statements by us give an implied warranty.
SHIPPING:
SEND US YOUR ZIP FOR A SHIPPING QUOTE!
WE WILL MAKE ALL ARRANGEMENTS!
We have the best shipping contacts in the nation who will provide the FASTEST transport times, have a perfect track record, and are always insured and ENCLOSED! All motorcycles are shipped WHOLE (roll-on, roll-off). We do not offer a pallet or crate service.
International shipping specialist contacts are available! They will assist in ground freight, customs clearance, and ocean freight to your country. International buyers will be required to work directly with our third party shipping contacts.
We strongly recommend you insure your motorcycle at the time of purchase.
PICKUP:
We require a 24 hour notice prior to pick-up. Please call us at 860-454-7024 during office hours Monday – Friday 9am – 5pm EST.
We will provide ramps, a dock for loading, and assistance to load for free.
