Estimated read time: 6 minutes
Welcome back to the Dispatch. Fall riding season is here, the air is crisp, and the market is moving. This week: what CT70s actually sold for recently, including a fresh $7,000 BaT result, three bikes worth a look right now, and how to bring a rusty tank back from the dead in an afternoon. Grab a coffee and settle into the garage.
Market Watch: What CT70s Are Actually Selling For
Asking prices are wishes. Hammer prices are facts. Here is what the auction market has been doing.
1973 Honda CT70 Trail, sold for $7,000 (October 8, 2026)
A 1973 CT70 just hammered at $7,000 on Bring a Trailer this week, the strongest recent result in the data set. Clean mid-generation bikes with honest paint keep pulling real money.
View BaT CT70 results
1971 Honda CT70 Trail, sold for $6,400 (September 23, 2026)
A clean, original-spec 1971 out of Broomfield, Colorado crossed the block in late September and brought $6,400. That is real 2026 money for a well-kept early bike, and it lines up with the broader trend: early K0 and K1 bikes in honest condition keep climbing.
View the auction record
1970 Honda CT70H Trail, sold for $8,400 (February 11, 2024)
The H model, with its 4-speed manual, continues to command a premium. This Santa Rosa, California example sold on Bring a Trailer for $8,400. Manual-transmission bikes consistently outrun the 3-speed automatics by a wide margin, something to keep in mind when you are shopping.
View the auction record
1970 Honda CT70 Trail (metallic blue refurb), sold for $6,900 (February 19, 2024)
A freshly refurbished metallic blue 1970 with a rebuilt 72cc motor sold on Bring a Trailer for $6,900. Note the catch: it was offered on a bill of sale only, no title. Even without paperwork, a sharp refurb pulls strong money.
View the auction record
1971 Honda CT70 (Allendale, Michigan), sold for $3,400
Proof that the market has an entry point. This 3,000-mile 1971 automatic sold on Bring a Trailer for $3,400. Not every CT70 needs to be a show bike to be a good buy. Riders in driver condition still trade in the mid-threes.
View the auction record
The big picture: Hagerty’s valuation data puts a good-condition 1971 K0 around $3,800, with recent 2026 Bring a Trailer sales landing between $3,350 and $7,000 depending on year, transmission, and originality. Early bikes, H models, and clean original paint keep setting the pace. If you own one, this is a good time to know exactly what it is worth, which is precisely what the Pricing Guide below is for.
Bikes For Sale Right Now
1975 Honda CT70 Trail, Mansfield, Texas, $4,900
Two thousand miles, automatic, listed as close to original spec. Fixed price. A mid-70s bike in this shape at $4,900 sits right in the fair zone for the current market.
View the listing
1973 Honda CT70 (140cc resto-mod), Houston, Texas, $3,950
For the rider, not the purist. This one has been converted to a 140cc four-speed with upgraded suspension, disc brakes, and a camo finish. California title, sold as-is. If you want a CT70 you can actually flog on the trails without guilt, this is that bike.
View the listing
Vintage Honda Trail CT70, eBay, $5,000 or Best Offer
A used CT70 listed at $5,000 or best offer with local pickup. The “or best offer” part is doing a lot of work here. Given recent hammer prices in the threes and fours for rider-condition bikes, there may be room to deal.
View the listing
From the Workbench: Bringing a Rusty Tank Back to Life
Almost every barn-find CT70 has the same problem: a fuel tank that looks like the inside of a rusty soup can. Before you spend $200-plus on a reproduction tank, try saving the original. An afternoon, some patience, and about $30 in supplies.
Step 1: Assess the damage. Pull the petcock and shine a flashlight inside. Surface rust is very fixable. Heavy flaking with pinholes or paper-thin spots means the tank is a donor, not a patient. Tap suspicious spots gently with a screwdriver handle. If it dents or crumbles, stop here.
Step 2: Shake it loose. Drop a handful of clean nuts, bolts, or BBs into the tank with a cup of water and a squirt of dish soap. Cap the openings and shake for a solid 10 minutes. This knocks the loose scale off the walls. Dump it out and rinse.
Step 3: Dissolve what is left. Fill the tank with white vinegar (cheap and effective) or Evapo-Rust (pricier, reusable, gentler). Vinegar needs 24 to 48 hours. Evapo-Rust typically works overnight. Check progress periodically. Do not use muriatic acid unless you know exactly what you are doing: it works fast and eats good metal just as fast.
Step 4: Neutralize, rinse, and dry immediately. Vinegar especially will flash-rust the moment it meets air. Rinse thoroughly, then rinse once more with a baking soda and water mix to neutralize the acid. Dry it fast: a hair dryer or heat gun on low, or a shop towel followed by a splash of rubbing alcohol to chase the moisture.
Step 5: Protect it. The bare metal inside will rust again if you leave it. Your options: fill the tank with premixed fuel right away and keep it full, fog it with fogging oil for storage, or use a tank sealer kit (POR-15, Kreem, or Caswell). Sealers are permanent and unforgiving of bad prep, so only go that route if the tank is truly clean and bone dry.
Step 6: Filter everything. Even a clean-looking tank sheds for a while. Run a quality inline fuel filter between the petcock and the carb, and check it after your first few rides. Your freshly cleaned Keihin (see Issue #1) will thank you.
From the Shop
The Shop Manual, $7.77. The factory service manual, digitized and searchable. Torque specs, wiring diagrams, exploded views. If you own a CT70 and turn your own wrenches, this pays for itself the first time you use it.
Get the Shop Manual
The Official Trail 70 Pricing Guide, $9.99. Every model and year, with real market data so you know what your bike is worth before you buy, sell, or insure it. Instant download.
Get the Pricing Guide
The Grease Monkey Bundle, $17.77. The Shop Manual plus the Pricing Guide, together at a bundle price. The full garage reference shelf in one download.
Get the Grease Monkey Bundle
Get the Next Dispatch
The Dispatch goes out weekly: real sale prices, bikes for sale, and one practical tip from the workbench, every time. If a friend forwarded you this issue, sign up below so the next one lands in your inbox.
The Trail 70 Dispatch is published by the Trail 70 Association. Sale prices are reported from public auction records and are accurate to the best of our knowledge at the time of writing. Listings were live at the time of publication but may sell at any time.