The Crank was a bit of a dilemma, so much choice but then a chance visit to PriceShaggers, the Ebay clearout arm of Planet-X turned up this for 164 notes, complete with a Ceramic bottom bracket…No contest! The catch, well this is a 170mm length unit, but as it happens that was the direction I was heading (more later about that)
FSA K-Force Light ATB MegaExo Crankset with Ceramic Bottom Bracket. 29-44 double rings.
The Plan is singlespeed with the full tooth pattern 29 inner, Road singlespeed/fixed on the 44 and two ring for other uses, Simples!
Here’s the anal spec;
MegaExo oversize ceramic ball bearings
AL-7075 Torx T-30 chainring bolts (These are brilliant)
Replacement bottom bracket cupset is FSA BB-9200
Monocoque carbon crankset with hollow arm design
AL7075 CNC Super MTB Chainrings
2 ring version features 4-Bolt 94mm BCD
Manufacturer: FSA (Full Speed Ahead)
MFR’s Part #: 310-0016N
Spindle Interface Type: MegaExo Pedal Spindle: 9/16
Hang on though….. 4 bolt’s on a 94 pitch circle, that’s no standard I’ve ever heard of. That’s going to make replacement rings a bit trickier that a visit to the local shop.
So how does it look as a single then; pretty good me thinks. The Spider is carbon, so I’m going to have to make some protective shims for the back of the nuts.