- Product Specifications
- Downloads
- Videos
- Density
- 52100-.28 LB/CU IN
- Diameter
- 0.25
- Diameter Tolerance
- 10 = +/- .0001"
- Dimension Type
- INCH
- Elasticity
- 52100-29500000PSI
- Grade/Sphericity
- GR. 10 EQ .000010
- Hardness
- 52100 - RC 60-67
- Tensile Strength
- 52100-325000PSI
- WORKING TEMP DEG. C
- 121
Reviews
2 Reviews
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Reviewer : Rob BossDate : 7/19/2012I've been using these bearings on my bikes for a few years now and love them. Costs just a little more than Grade 25 and the performance is noticeably better. Helps with mediocre hubs like Shimano 105, but put them in a Campy Record or Dura Ace and the performance is phenomenal. You really notice it when you stop pedaling and coast--you just strooolll on! Grade 5 might be an improvement but that's cost prohibitive with diminishing returns. This is a nice balance of price and extra performance. A LOT of bang for the buck.
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Reviewer : RobDate : 7/16/2013I've been buying bearings from your company for probably ten years now, and you've given me good service every order. Your products are top notch. I use Grade 10 ball bearings on my bicycles. They're my secret weapon!