Other Resources > Component Deals & Selection
Newish ZEROING crankset - Ingrid clone
BalticSea:
--- Quote from: jonathanf2 on August 29, 2023, 12:36:27 PM ---I have 24mm 7075 alloy axle spindles on all my bikes. I haven't had any issues...yet. The weight savings are very noticeable. All I do is hill climb and go out of saddle quite often. Though I weigh between 68-70kg. I figure at my size, I can get away with a lot of weight weenie hacks that thicc cyclists wouldn't be able to pull off.
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What's the realistic weight difference between 24mm steel and alloy spindles? 30, 50, 70 grams? 100 grams?
jonathanf2:
--- Quote from: BalticSea on August 29, 2023, 02:08:56 PM ---What's the realistic weight difference between 24mm steel and alloy spindles? 30, 50, 70 grams? 100 grams?
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Depends on the crankset. The Racework carbon crankset is about 377g and the Goldix/Zeroing crankset w/hollowed out crank arms is about 475-480g. In order to match those weights, you have to go Dura Ace of SRAM Red at a significantly higher cost.
raisinberry777:
--- Quote from: BalticSea on August 29, 2023, 02:08:56 PM ---What's the realistic weight difference between 24mm steel and alloy spindles? 30, 50, 70 grams? 100 grams?
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Comparing the Senicx PR2 and PR3 cranks (the only difference seems to be that the PR3 has a 24mm steel spindle, PR2 has a mm DUB alloy spindle) the difference is about 70-80 grams.
BalticSea:
--- Quote from: jonathanf2 on August 29, 2023, 05:01:33 PM ---Depends on the crankset. The Racework carbon crankset is about 377g and the Goldix/Zeroing crankset w/hollowed out crank arms is about 475-480g. In order to match those weights, you have to go Dura Ace of SRAM Red at a significantly higher cost.
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I did some digging, found weight for non-Shimano spindles - 160g for steel, 90mm for alloy. 70 grams savings is less than 0.1% of total system weight (typical accuracy of digital scales is 0.1%). Comprimising the durability of one of the highest stress areas for literally meaningless gains is not what I'd recommend.
jonathanf2:
--- Quote from: BalticSea on August 30, 2023, 01:49:33 AM ---I did some digging, found weight for non-Shimano spindles - 160g for steel, 90mm for alloy. 70 grams savings is less than 0.1% of total system weight (typical accuracy of digital scales is 0.1%). Comprimising the durability of one of the highest stress areas for literally meaningless gains is not what I'd recommend.
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The alloy spindle axle 7075 T6 cranksets I received all have manufacturing date stamps, so at least I can keep track of their wear life. They've all held up just fine. Plus I rotate my bike usage to reduce component wear and keep on top of my regular bike maintenance.
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