This item for sale is a new Shimano cartridge bottom bracket...model BB-ES71. Some of it's specifications include the following:
Cup type/size: Italian threaded...36 mm cups x 24 threads per inch (tpi)
Shell width: 70 mm
Spindle/axle type: Octalink (V2)
Spindle/axle length: 113 mm
Production locale: Made in Japan
Please note the spindle/axle length is fairly important, because we believe Shimano made this model bottom bracket in two spindle lengths and this is the shorter of the two lengths. From what we can tell, Shimano intended this shorter spindle to be used when a chain line of 47.5 mm was desired (measured from the center of the seat tube to the middle chainring on a triple crankset). We believe this chain line was usually desired when the front derailleur was mounted on a standard sized seat tube.
We also want to emphasize this bottom bracket incorporates Shimano's advanced Octalink technology, which resulted in a complete re-design of the bottom bracket to include a hollow (and larger) 22 mm pipe billet spindle/axle with an 8-spline interface to the crank arm...for greater strength and reduced weight. Additionally, it is important to note that Shimano designed two different Octalink spindle ends...a V1 design with each spline measuring 5 mm long x 2.2 mm wide (intended primarily for it's XTR, Dura-Ace, Ultegra and 105 Octalink compatible cranksets)...and a V2 design with each spline measuring 9 mm long x 2.8 mm wide (intended primairly for it's various Deore series, Tiagra and Sora Octalink compatible cranksets).
Date coding indicates this model was made during the first half of this decade and was intended for Shimano's Deore XT mountain bike cranksets of this era (Models FC-M751 and FC-M752)...so very close to Shimano's top-of-the-line in a bottom bracket offering at the time. Also (and as noted above), the V2 Octalink spindle ends are compatible with other Shimano cranksets, but please check your crankset's spindle/axle length requirements before attempting to use this offering with another Shimano crankset...and we can try to help in this regard should you have questions). We empasize this last point, because chainline has a direct impact on shifting performance, so even though selected Shimano crank arms may have the same V2 Octalink 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, these units are new and in their original retail box. Also, the only difference we are able to identify between this model ES71 and it's predecessor model ES70 is the ES71 appears to include anti-corrosion treatment (which consists of a rust proof treatment of the inside of the pipe billet spindle).
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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 aplogize 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.