New-Old-Stock SR Royal Bottom Bracket Spindle...68mm x 106mm

Description

New-Old-Stock (NOS) SR Royal "Cup-n-Cone" Bottom Bracket Spindle...68 mm x 106 mm
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 new-old-stock (nos) SR Royal "cup-n-cone" bottom bracket spindle. Some of it's specifications include the following:
Cup type/size:
compatible with cups having English threads and measuring 1.37" in diameter x 24 threads per inch (tpi)
Shell width:
68 mm
Spindle/axle type:
JIS square-tapered
Spindle/axle length:
106 mm
Production locale:
Made in Japan
Special note:
The spindle/axle has symmetrical measurements, as both the right and left side spindle ends (including the width of the cone) measure 27.5 mm and the center section measures 51 mm.  Please also note this center section measurement is slightly narrower than what we typically see on spindles spec'd to the English (68 mm) shell width standard.  It may not be enough of a difference to matter, but we still wanted to point this out (as this spindle will accommodate thick bottom bracket cups).
Please note the spindle/axle length is fairly important, because cranksets 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 older style cup-n-cone bottom brackets, but we believe Shimano's chainline recommendations should offer a good bench mark. 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 that Shimano also specifies 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 spindle.  Although, please check your crankset's spindle/axle length requirements before attempting to use this offering with a particular 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 (or related component pieces).
Additionally, when we compare this bottom bracket spindle to some of our other cup-n-cone spindles we have available, this offering resembles some of our higher-end units. More specifically, the finish work, especially as it relates to the races, appears to be very well done...which should improve performance and possibly longevity. We also believe the materials used to manufacture these higher-end cup-n-cone spindles have more favorable strength/stiffness characteristics relative to less expensive cup-n-cone offerings, but we do not have any information to confirm our thoughts...just some limited experience and feedback from colleagues.
As for condition, these spindles were bulk packed, so there may be some cosmetic scuffs/scratches. Although, we see no signs of use or any mark that might indicate a previous installation.
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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.