New-Old-Stock Suntour Cartridge (Sealed) Bottom Bracket...68x115mm

Description

New-Old-Stock Suntour Cartridge (Sealed) Bottom Bracket...68x115mm
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 item for sale is a new-old-stock Suntour cartridge (sealed) bottom bracket. Some of it's specifications include the following:
Cup type/size:
English threaded...1.37" cups x 24 threads per inch (tpi)
Shell width:
68 mm
Spindle/axle type:
JIS square-tapered
Spindle/axle length:
115 mm
Production locale:
Made in Japan
Special note:
This is a fairly rare item...a Japanese made and Suntour branded cartridge (sealed) bottom bracket.  I never find more than a few of them at a time and this is probably due to their limited production window in the early 90's (before Suntour closed it's doors).
Please note the spindle/axle length is fairly important, because vintage Suntour cranksets (and other brands) generally have different profiles. This is key, because it's the combination of the bottom bracket spindle length and the right-side crank arm profile that will have the greatest impact on chainline. There is not as much information on these Suntour bottom brackets, but we believe Suntour's chainline recommendations should be consistent with Shimano's cartridge bottom bracket offerings. Assuming this fact, a chainline of 43.5 mm (measured from the center of the seat tube to the midpoint between the two chainrings on a double crankset) or a chainline of 45.0 mm (measured from the center of the seat tube to the middle chainring on a triple crankset) is considered optimal for a road bike. Alternatively, a chainline of 47.5 mm (measured from the center of the seat tube to the middle chainring on a triple crankset) is considered optimal for a mountain bike. The only other consideration here is some manufacturers specify that a 50.0 mm chainline may be preferred for a mountain bike when the front derailleur is mounted on an oversized seat tube...pushing the front derailleur further to the right.
Given these parameters, there are probably a number of cranksets that may be compatible with this bottom bracket...although our research indicates that Suntour's GPX crankset from the late 80's and Shimano's 105 SC crankset from the early 90's (double chainring model FC-1055) are compatible. One other note...the left-side adjustable cup and lockring are made out of a hardened steel, which is a little heavier than the resin/plastic adjustable cups we usually note on newer model cartridge bottom brackets. Having said this, we prefer the hardened steel or aluminum alloy adjustable cups, because they are stronger (and this is an area...the bottom bracket shell area...where we believe the added strength is more beneficial relative to the slightly heavier weight).
Also (and as noted above), the square-tapered spindle ends are compatible with other Suntour/Shimano cranksets, but please check your crankset's spindle/axle length requirements before attempting to use this offering with another crankset...and we can try to help in this regard should you have questions). We emphasize this last point, because chainline has a direct impact on shifting performance, so even though selected crank arms may have the same square-tapered interface, if their spindle/axle length requirements are different from this offering, then there is a strong possibility that shifting performance will suffer...so please pay particular attention to spindle lengths when it comes to purchasing any bottom bracket.
As for condition, this unit is new and unused, and retail packaged (in one of the old plain brown Suntour branded boxes), but the cardboard box is heavily shopworn.
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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.