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Xlobsterman Yes that is my drawing. The Breezer one is on web page by Peter Verdone http://www.peterverdone.com/breezer-series-2-1980-81/ Les

Xlolobsterman Good to see you are preserving the bike as it is, it is a piece of history in its own right and not to destroy it by building it up the riding it would not be a good thing. It can hang in a museum for its uniqueness, well until it is confirmed for its date. I did measure and drew...

GTs58 In reply to your comments regarding the image of Schwinn head tubing SN stamping and head badge stamping. You say this Chicago Schwinn was made on Monday, March 15, 1982. By the head badge stamping 0742 the cycle was completed Monday March 1982 74th day of 1982 along many other cycles on...

To compare this is a Schwinn frame made in the Chicago factory in 1981 with a stamped Serial number KS530684.

Xlobsterman, In my searching the BSnnnnnn and others similar is in the same location, underside of the BB. J-wagon comment is correct and indicates the Asian Serial Number Guide but I consider the ASNG not to be the same as the Schwinn Chicago guide as I have seen a Bianche SN with IS513786 and...

J wagon The SN stamp is the confusion as Schwinn used the Chicago SN format from 1965 until 1983 where the first letter means month A to M excluding I and the second letter is A to U ie1965 to 1983 excluding I and O. I searched the Schwinn serial number lookup tool and it recognised BS as...

GTs58, Well your same old story as mine is. Firstly Schwinn in 1981 made up to 999999 cycle frames with S after the Month A to M. That followed the Chicago format. The proof of this being applicable is accepting 1981. Bikes made in the USA also have a number stamped onto the head badge. First...

Xlobsterman, That is sort of what I meant but of course there may have been other items boxed that are not one of these frames. I have looked at Panasonic serial numbers that do not match what is on these frames, eg from Classic Japanese Bicycles Again no match for what we have. A = January...

Somebody needs glasses. The name on the forks is Ishiwata . Ishiwata was bankrupted in 1990 but the manufacturing has continued as Kaisei tubing and is still available. Xlobsterman This frame and packaging is a Museum piece. Excellent reference for those wishing to restore another frame as I am...

GTs58 I have always understood the frame was not made by Schwinn but is Japanese, but who? Were they ordered by Schwinn, then made for Schwinn then, sold by Schwinn thus a form of approval has happened and the frame is badged as a Schwinn, but that does not concern me particularly. The...

GTs58 From #36 Good point decoding. The BS367823 has 6 digits after BS, and not 5 digits as in the 1981 format database: Schwinn Serial Number Reference | All Things Schwinn 1948-1951 1952-1969 1970-1982 thecabe.com @GTs58 decode as 1983 is consistent with 1983 catalog listing of mountain...

jd Did Shogun make early 80`s MTB or only mid 80`s ?. Schwinn did not MTB`s early, only ATB`s, at least that is what they said pre1983. The Schwinn feather decal may still be available but watch the length. I had to get a second set as the first were too short. I have looked at some images of...

Sorry to hear your confusion, I myself have had that with my frame to a point of just giving up on it. After one Schwinn forum site I was on and a discussion that was with an expert, I did give up. I was diagnosed with cancer at the time but now recover, just less a body part. My frame came with...

GTs58 The explanation of the Schwinn Chicago strike and production was not happening during this period I understand. There was some production going on I have seen but not necessarily of frames. These MTB frames where imported by the Schwinn Parts Division as per Jim Hurds comments of MTB in...

L-wagon The numbers you are having confusion reading are the part numbers for a 19” (29 266) and separate 21” (29 265) frames made to the same design. To what dated yearly catalogue do these part numbers connect to which is may not be a yearly sales publication. I have seen this page in a 1983...

J-Wagon, By the serial number why would Schwinn issue an identical number that was issued in 1981 (correct by the Schwinn established format) again in 1983, would this not breach legalities. The advertising in 1983 was the earliest time but they where apparently sold by Schwinn sale reps when...

Hi, The No Hands book would be useful to read but for me the cost is immense as postage puts it up to over $NZD 1000. I bought my frame/forks only on Ebay and imported it to New Zealand and started restoration. There are a few aspects of this Schwinn frame to consider although by the serial...

J-wagon Yes the small letters are Ishiwata Cro Mo 0ver Double butted tubes. Thus is one I found in ebay, not on my frame originally I attach the Ishiwata Catalogue referred to as Pre 1980 MTB page

Hi to LIFE OF SCHWINN and all others, A contact from Karate Chicken Industries gave me this link. Here I see all the same issues I have seen with my frame on other forum pages that I started a few years back. I bought my frame/forks only on Ebay and imported it to New Zealand and started...

Refer to this page on thecabe https://thecabe.com/forum/threads/schwinn-serial-number-stamping.86093/ All is explained

It also appears to be on the opposite side of the head tube. The SN is HS571121, a bit hard to read due to the sun glare but it makes it an August 1981 start. I agree the SN is stamped at the beginning of the frame manufacture when the steel used was still a flat sheet. The true date of the...

Hi I saw this one on ebay recently 1986 Schwinn Paramountain SF654320 that is also black stated to be made at Greenville. Not the same as yours. It may give a lead. The serial number is useful information Les

A photo or serial number and location will help. Paramount made Schwinn MTB at Greenville Les

That is ok. What is the serial number or at least the first letter and do you ship to the address shown. I live in New Zealand and NZ Post will ship to me from that address at my cost, Regards Les

Hi Do you ship to 14601 N Bybee Lake Ct, Ste NZ5032613 Portland, OR 97203-6629 United States +1 503-736-5916 That is my USA postal address. What head badge does it have and what size is the frame, I am am 5` 7 " Regards Les

Matty I have added some SN research regarding the Schwinn MTB 1981-1983/4 BS3-CS4 etc Les

C A RANDOM LIST OF SCHWINN SERIAL NUMBERS AS CONFORMING TO THE SCHWINN CHICAGO FORMAT IN ORDER OF MONTHS FOR YEARS 1974 T0 1984 (YEARS OUT OF ORDER) NUMERAL FIRST DIGITS IN ORDER. Schwinn SNs M letter fit as corresponding with a series of individual frame SN below organised vertically...

Santuri32 and others I have had some spare time available in lock down and I have servived and I am reasonably able to get out, I hope others have also, but your whole world is not now the same. I have come back to this forum page with the recommended approach of collection and analysing the...

Mtacortex Sorry to bare bad news, I have checked the references and, SHOGUN (USA?): See Mikki, S(1), S(2), N(1), Yamaguchi. MIKI (Japan): MyFxxxx NOT AS S(1) or (S2) YAMAGUCHI (Japan): YyFxxxx. There has been some speculation whether Yamaguchi is the manufacturer...

Hi again I have had a look at the Asian guide where there is a group under S. S(1) (Japan): MSyxxxxx S(2) (Japan): SyFxxxx S(3) (Japan): sMyxxxxx The only one that could apply is S(1) I agree it could apply, this guide gives no reference to which Japanese manufacturers used that system and...

Metacortex, Compare the logo below for what is on your bikes. Most of what it is is not clear, on the photo above. The JIS logo is common on many Japanese items to define a government imposed standard. It can be used by any Japanese manufacturer equally. The logo that is stamped into the...

Metacortex That does seem to show the number to the year 74 of the frame but it is different to the one on my frame in that does not have ISHIWATA as mine and the format is totally different. Mine is Year month. It does appear to have another marking that could be the Japanese manufacturing...

ABC Services. Thanks for the offer, the Jay Pridmore, Jim Hurd book The Schwinn Bicycle made the comment on page 147 “The Schwinn parts Division brought in some lugged mountain bike frames from Japan. But mostly Schwinn was leaving the new market to others. " I have seen other comments that...

Hi, I have been on the MTBR forum and still searching for anything on the lugged Schwinn MTB, or should that be ATB as that is what the MTB was referred to by Schwinn in 1981. With all my searching I have not found anything that confirms the serial number BS367823 stamped to the underside of the...