TA Carmina Cranksets


Specialites TA has discontinued production of the Zephyr crank. They have replaced it with a new crank that has interchangeable spiders. The arms are silver, it has a black spider (any one of eight types), and silver, black or red chainrings, depending on type and size. The spider is available in eight versions, with different bolt circles; double or triple.

The Carmina has a beautiful matte finish, and it's anodized. All Carmina cranks come with black Auto-Extractors which match the black spider.

Using the same crank arms, you can change from a 130mm bolt circle to a 110mm or a 104mm or a 94mm bolt circle. I suppose that's nice, but I doubt many people will ever do that. I think the real advantage is that shops don't have to stock as many styles of cranks. Just stock the Carmina, and several spiders. The spiders attach in the same way that Shimano XTR spiders attach, and require the same Shimano tool. When you order a crankset from me, I will of course install the spider, unless you ask that I not.

The available bolt circle spiders are:

130mm Double (Smallest inner chainring, 38 teeth) Available now.

130 x 74 Triple (Smallest middle chainring 38 teeth. Smallest inner, 24 teeth) Available now.

110mm Double (Smallest inner chainring, 33 teeth)

110 x 74 Triple (Smallest middle chainring 33 teeth. Smallest inner, 24 teeth) Available now.

94mm Double:
Inner chainrings - 30, 32, 34, 36, 38, and 40 teeth
Outer chainrings: - 42, 44, 46, 48, and 50 teeth

94 x 58 Triple:
Inner chainrings - 20, 22, 24 teeth
Middle chainrings - 30, 32, 34, 36, 38, and 40 teeth
Outer chainrings: - 42, 44, 46, 48, and 50 teeth

The 94x58 triple is a good setup for many touring bikes, like the Rivendel Atlantis. Specialites TA makes 46 teeth outer rings for the 94mm bolt circle. So you can have 46-34-20 or 22 teeth rings on a Carmina crankset, which is ideal gearing on an Atlantis frame.

One of the more endearing features of the Zephyr is the addition of a 56mm bolt circle to the 110 x 74 triple. That allows you to have rings as small as 20 teeth. That won't be possible on the Carmina with 110mm outer chainrings. But you can do it with the 94x58 triple spider.

Q Factor

With a 113mm TA Axix bottom bracket, symmetrical in the frame, the Q factor for a triple is 156mm with the TA pedal washers. You can instead use a shorter axle and offset it to the right. So for instance if you used a 107mm axle with a 2.5mm spacer to move the axle to the right, you could get the same chainline and the left crank arm would just be 6mm closer to the left chainstay than the right arm. This assumes a 45mm chainline, which is the minimum that will work with current Shimano 9 speed triple front derailleurs on a 1 1/8" seat tube. Any narrower and the derailleur will be unable to shift the chain from the middle ring to the inner ring on the triple.


Available arm lengths: 155mm, 160mm, 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm, 180mm, 185mm. 170mm and 172.5mm arms can be special ordered in black anodized finish. No other sizes are available black anodized.

I recommend a 103mm bottom bracket for the double crankset and a 113mm bottom bracket for the Carmina triple. All TA cranks use tapered axles. They do not work on ISIS or Shimano Octalink bottom brackets, nor do they work on any Campagnlo bottom brackets.

The Carmina crankset is now available. And of course we still have some Zephyr Light cranksets available.

Carmina Triple: $ 385.00

Carmina Light 110mm double with black Syrius chainrings. Choose from 50, 48 and 46 tooth outer rings, and 34 or 36 inner rings: $ 395.00

Carmina Light 130mm double with black or red Hegoa chainrings: $ 395.00

 

 

This page was last updated: Wednesday, November 15, 2006

To see my full selection of chainrings, click here.

For TA Alize cranksets, click here.

For more about bottom brackets, click here.

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This page updated: Wednesday, September 26, 2007

Peter White Cycles
24 Hall Rd.
Hillsborough, NH 03244
USA
603 478 0900 Phone
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