New-Old-Stock Suntour Pro (Model SP-6200) Accushift Chain (1/2" x 3/32")

Description: New-Old-Stock Suntour Pro (Model SP-6200) Accushift Chain (1/2" x 3/32")...6/7/8-Speed Compatible Thank you for your interest in this item and please visit our store for other offerings. We have very reasonable shipping terms and combine orders to save money (for customers) on shipping costs. We also maintain customer friendly return/refund/exchange policies. Product Description: This offering is for a very good quality new-old-stock Suntour Pro Accushift (index shifting compatible) chain. Based on catalog references, it appears to be a Model SP-6200 from the late 80's...with it's distinctive silver and black (alternating) links. Although, I've had some folks comment the color of the dark colored links is more likely a very dark blue-gray. I am honestly not sure on the color...maybe somewhere in between. If our identification is correct, then this chain was positioned near the top-end of Suntour's offerings from this period. We are fairly confident in our assessment, because the actual chain specifications match Suntour catalog specifications from the late 80's. More specifically, there is the aforementioned color/finish, the catalog weight of 326 grams (which is consistent with our scale weight), the high arching inner link plates and the lack of cambered (widened) link plates. Other chain specifications include the outer chain width and total links, as discussed below, which are also consistent with catalog specifications. Lastly (and for those that are interested), the top-end chain from this period was the all silver Suntour Superbe Pro (Model SP-6000) chain. It is a derailleur driven chain that incorporates the old bushing design (see discussion below for bushing vs. bushingless chain design/construction). Other specifications include an internal link measurements of 1/2" x 3/32" and there are a total of 114 links. The external width of this chain...at 7.3 mm...would indicate this chain should be compatible with any of the narrower 7/8-speed Suntour index shifting drivetrains from the early 90's. We say this, because this chain width falls in between equivalent SRAM and Shimano 7/8-speed chain offerings, which measure 7.1 mm and 7.4 mm, respectively. In terms of condition, these chains are new and unused...and still in their original packaging (although the latter is nothing special...as the plastic packaging is beginning to yellow and break apart). Having said this about the packaging, the chains still look good...with no signs of rust or corrosion. A note about bushing vs. bushingless chain design/construction... As we understand it, the bushing chain design represents the original construction technique by which all bicycle chains were assembled. This approach includes the use of bushings (i.e., something that looks like a hollow rivet) that hold inner plates together and allow link pins to pass through...connecting inner plates to outer plates...to ultimately construct the chain. These bushings are not visible once the link pins are in place, as the outer plates cover the inner plates around the area where the bushings are located. Although, a quick glance at chain ends (prior to chain installation), and specifically the visible inner link plates, should allow for a relatively easy chain identification. More specifically, the bushing design with the hollow-like rivets will show themselves as thin rings connecting inner plates and covered by rollers. In contrast (and as the name suggests), the bushingless chain design eliminates the bushing from the construction process. This is how most newer chains are mass produced, as this appears to be today's preferred method of construction, especially for indexing drivetrains. So instead of a bushing that holds inner plates together, the inner plates themselves have been re-designed to include an added cylinder shaped section that extends half the length of the inner chain width (or half the length of the old bushing). It's these two cylinder shaped "halves" of the inner plates that meet in the middle to eliminate the need for bushings. The link pins and rollers are still present under both chain designs, but the bushings are eliminated here, given the aforementioned advancements in inner plate design. So to view the chain ends of a bushingless chain, and specifically inner plate ends prior to chain installation, you will not see a bushing-like ring...and this is the "tell-tale" for bushingless chain identification. Now having said all of this, I've alluded to some preferences/benefits of the bushingless chain, but let me share a few other thoughts after discussing this topic further with some informed colleagues. As it relates to bushing constructed chains, there is the prevailing thought that these chains tend to exhibit more lateral stiffness, which means each shift will have to be precise, but this also means there will be less lateral "play" or "flex" in these chains. The reason for the stiffness is the one-piece (but hollow) bushing that connects the inner plates. On the other hand, the bushingless chain replaces the bushing with an advanced two-part inner plate design that exhibits a bit more lateral flexibility. It's this lateral flex that appears to benefit the indexing drivetrains and one of the reasons why the bushingless chain has gained more popularity in recent years. In the end, both chains probably have their own redeeming qualities and both designs will function on friction-based or indexing drivetrains, but there are still differences to be noted (and hopefully this discussion is helpful in shedding some light on these differences). Terms and Conditions: You may visit our store by clicking on this "Store Home Page" link and please note the product categories on the left side of our "Store Home Page". We have also moved our "Terms and Conditions" to a separate page within our Ebay store. You may navigate to this page by clicking on the link on the left side of our "Store Home Page" (below the product categories) or you may click on one of our "Terms and Conditions" direct links herein. Note to international customers regarding shipping... We apologize to those that feel some of our international shipping charges are too high. We only charge actual shipping rates, but once an order exceeds a certain amount, we hesitate to use the least expensive US Postal Services First Class International service. We feel this way, because this service is not trackable or insurable...so more risk of loss. We prefer the US Postal Services Priority Mail International service for more expensive orders, because this service is trackable at USPS.com and insurable...so less risk of loss. Unfortunately, this service is more expensive, especially for smaller/lighter packages, relative to the First Class International service. We are sorry about these higher shipping costs, but hopefully our notes help to explain why this is the case. Note to international customers regarding customs... We also apologize to those that feel their country import taxes, duties and brokerage fees are excessive. As a small US business, we are required by customs' laws to declare each order as a retail sale. Additionally, the declared order value must be equal to total store purchases and/or winning auction bids (less any shipping costs, as these are not considered in the declared value). As a result, each customer will be responsible for paying his/her own country taxes, duties and brokerage fees, which will be collected upon delivery. Again, we apologize for these additional costs, but we cannot afford the penalties and fines that come with breaking customs' laws...so we have to strictly abide by them.

Price: 129.99 USD

Location: Argonia, Kansas

End Time: 2024-12-31T16:11:40.000Z

Shipping Cost: N/A USD