![]() ![]() I would also check these same adjustments for the rear derailleur especially on the wheel side due to there being no "spoke protector" guard! If you are not "bike mechanically" inclined you may want to bring it to a reputable shop (or experienced friend) and have it done for you it should take less than 10 minutes, and be a low cost fix (like $10 or so $20 is high in my opinion). If tires are really good, that is an approximate $30-$80 (can easily go higher) savings right there depending on what level of tire you buy cables are usually fairly cheap.Īs far as the front derailleur throwing the chain off the ring, it is more than likely caused by the improper adjustment of the "low" limit screw which can be screwed in a little more to keep the derailleur cage from travelling too far past the chain ring the "high" limit screw should also be checked to ensure that it doesn't do the same thing on the large ring. I probably would put it more in the range of $100 if I was buying it, as there are many higher quality Bridgestone bikes out there. The price you paid wasn't horrible if EVERYTHING is in proper working order and you got NEW OR VERY GOOD condition tires and cables with it but that being said it really isn't much of a collectible (it would not be considered a "handmade" bike), although it should make a decent rider once properly set-up and adjusted. It still may be that this is a 1980(s) bike, but was fitted with parts from the previous year or two (not an uncommon practice). The frame design indicates a mid-late 70's bike, and components more late 70s. The Sun Tour components also have date codes of two letters (year/month). These cranks are more likely to be found on an entry level sport/recreational or touring bikes this is also typified by the dual eyelets at the front and rear dropouts for mounting fenders and racks. The crankset is of a low end quality the ring "fixing bolts" are not flush to the ring/spider, and the large ring integrated with the spider is low end design there were many versions of "APEX 5" cranksets of higher quality. The "SR"/Sakae Ringyo (crankset) should have a date code on the inside of the arm generally a two digit number (year) followed by a letter (month). Personally, I would check the components for date codes on them. You may be able to research that number, but it is usually a hit or miss endeavor. The "G" may also be a date code itself or in combination with the numbers. It may very well be that that first or last "80" is a date code however it could also be that the first "8" is a date code of the last digit in a year (ex. ![]() I don't know how Bridgestone serialized their bikes. Does the 80 at the end mean the bike is from 1980? (06-03-2020, 12:34 PM)MotorCit圜obra Wrote: Spotted the serial number after cleaning the bike. What year is this bike from, and is it handmade? I think its from the late 70s.Īnother issue/question: when i push down the left gear shitfer, the chain on the bike comes off. It is a Suntour Power gearsystem/shifters and on the bike it says "Tested Finest Bicycle With Precision Mechanism". Today i bought myself a vintage Bridgestone for about 200$. ![]()
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