New-Old-Stock Shimano 105 Double Crankarm Set (Model FC-5501.172.5 mm). Demo

  

New-Old-Stock (NOS) Shimano 105 Double Crankarm Set (Model FC-5501...172.5 mm)... Demo Model Thank you for your interest in this item and please visit our store for other offerings.

This offering is for a set of new-old-stock Shimano 105 crankarms (Model FC-5501) for a double chainring set and in a silver finish. These crankarm sets incorporate Shimano's first generation Hollowtech design (so they are made from a hardened/forged alloy with a hollow center section for added strength/durability and a lighter weight relative to predecessor models). It's also worth noting this crankarm set is the last Shimano 105 production model to incorporate the Octalink bottom bracket interface (and we discuss bottom bracket specs in more detail below). The date range for this particular crankarm set is from 2000 to 2002. This was followed by a modest refresh from 2003 to 2005.

It was not until 2006 that Shimano rolled out their Hollowtech II design (with the bottom bracket cartridge bearings seated outside the frame's bottom bracket shell). This crankarm set was marketed as a 9-speed drivetrain component, but it should function in other drivetrain environments (although if it's intended for significantly older drivetrains, then spacers may be needed to widen the gap between the chainrings to accommodate a wider chain).

This is not a difficult task, but will require some patience until proper width is achieved. If I had to make a recommendation, then I would suggest backwards compatibility should be limited to 7/8 speed drivetrains...

The crankarm set measures 172.5 mm in length, weighs 503 grams with the crankbolts (per our digital postal scale) and has a bolt-circle diameter ("BCD") of 130 mm. Other specifications indicate the crankarm set is designed to accept an Octalink (V1) oversized bottom bracket with the large (22 mm in diameter) hollow pipe billet axle. The key in this regard is to make sure the crankarm set is matched with the correct bottom bracket to ensure proper chainline and Shimano specs. Proper chainline on a double crankset to be 43.5 mm.

To achieve this desired chainline, our Shimano catalogs indicate a 68 mm x 109.5 mm bottom bracket is recommended for an English threaded frame (and a 70 mm x 109.5 mm for an Italian threaded frame). With respect to condition, this crankarm set was originally a new-old-stock crankset. Although, I needed the chainrings for another project and so I just have the crankarm set available for sale.

I can confirm the chainrings were clearly new-old-stock, with no wear on any of the teeth. Although, upon closer inspection of this crankarm set, I believe it has been mounted before and there is some shopwear (scuffs and scratches) in the polished silver finish. Maybe it was a "demo" crankset at the shop and that explains some of the shopwear. Lastly (and as noted in the pictures), a factory matched set of chainring bolts, crankbolts and washers is inclluded. I have just one set of these crankarm sets left in stock in the 172.5 mm size and I have updated the pictures to reflect this last set. I guess I may see a bit more shopwear in person due to the picture glare, but I may be splitting hairs at this point. 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". You may navigate to this page by clicking on the link on the left side of our "Store Home Page". Unfortunately, this service is more expensive, especially for smaller/lighter packages, relative to the First Class International service.