Hollowgram Spline Interfaces - Have they changed Si vs. SiSL vs. SiSL2

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Emyr
Cannondale spindles:
- Si: road:104mm, mtn:132mm
- SiSL2 (extra 5mm driveside): road:109mm, mtn: 137mm
- SiSL2 on SuperX AI 2016+, PF30 x 83mm: 119mm for 1x, 125mm for 2x.
- Fat CAAD: KP402 160mm for 1x, KP403 166mm for 2x
Fat CAAD runs a 197mm thru axle, ~~so probably a 75mm chainline~~. The crank is listed "Cannondale Si, BB30a, Fat Offset SpideRing, 30t", the shell "BB30XL 120mm" The back of the Fat-specific 30T SpideRing is engraved "30T CL71 BB shell DS 60 spacer 2.0"

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swedeee in reply to @Emyr

am I correct in saying the 104mm spindle has a lip on it (drive and non drive side) vs the newer 109mm ones?

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Emyr in reply to @swedeee

The 104mm spindle has a flange on one side. If there was a flange on both sides you wouldn't be able to slide the spindle through the bearing.

No flange on 109mm spindles.

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