Programmer, bike polo player, fatbike rider.
Welshman in Manchester.
Most recent activity
Normal MTB SpideRing: 49mm CL, 137mm spindle.
FatCAAD spindle 23mm wider, 71mm CL, so the Fat SpideRing runs about 10mm further out that normal.
But yes, outboard RaceFace BSA30 in a shell that should be 100mm wide. FatCAAD uses 120mm BB30/PF30/whatever.
Nope, 1x on a 160m spindle, but with a narrower chainline than Fat CAAD's 71mm because that has a 190mm OLD rear, whereas my frame is 170mm OLD.
I've ordered a 51 gram 30T SS (not NW) titanium chainring:
Includes some spacers as the titanium is a bit thinner at the splines than the stock spiders & SpiderRings, should let me tweak the chainline a bit.
The rim's quite deep and not lightly built, so that will help spread loads across the spokes.
You need to add 0.65mm worth of thickness all round the tube.
I'd use a layer of self-amalgamating tape (or insulation tape if you're cheap and you hate your bike, yourself and Tester), a few wraps of beverage can, then another layer of tape.
Do you also have the 5x110mm spider? I could do with knowing how far inboard the 104mm spider middle-ring runs compared with the 110mm spider. (I'd assume the 130mm spider would be the same offset as the 110mm, but hard to check)
Raceface BSA30 was about £28 on CRC last month. Some people reckon they don't last, but then some people manage to wreck Shimano HT2 bearings too...
Is there any way of finding out before hand what spacers I'll need to run the Si Cranks in with a RF 73mm spindle in a BSA BB?
Cannondale publish PDFs listing the spacers required for various applications.
DS: bearing shield (2mm?), 14mm spacer
NDS: bearing shield (2mm?), wave washer, 1-3 shims (0.5mm), 19mm spacer
So for BSA30x73mm, lose the bearing shields, make space for 10.5mm external cups:
134.5mm RF spindle (call it 134mm for calculations)
DS: 4mm spacer
NDS: wave, shims, 9mm spacer.
Your chainline will be ~1.5mm narrower than the same spider/ring on a Scalpel.