Shimano BB-RS500 Bottom Bracket
What the checker says199will not fit
Run variant by variant through the gravel bike builder’s own engine. Every sentence below is the checker’s, unedited. Nothing here says this part fits your bike; it says what it does and does not fit among the parts we hold.
Checked against 851 verified gravel bike parts in this catalog. 792 produced no finding of any kind; that is BB-RS501. BB-RS500-PB clears 770. Each variant produces 59 to 81 distinct errors and 0 distinct warnings.
Will not fit
Rg bb shell, Frame. 136 more findings from the same check, on up to 1 of the 74 verified frames each.
Rg bb spindle, Crankset. 63 more findings from the same check, on up to 1 of the 33 verified cranksets each.
Open a variant in the builder to see the ones that apply to your own parts.
$22.00 to $28.00 MSRP·71 to 93 g
What the maker states
- Shell
- Fits a bsa-road bottom-bracket shell (on 2 of 3 variants); Fits a bb86 bottom-bracket shell (on 1 of 3 variants)
- Spindle
- Takes a 24mm-road crank spindle
A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.
3 verified variants
| Variant | Shell | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|
| BB-RS500 | Fits a bsa-road bottom-bracket shell | $25.00 | 92 g | maker’s page | 2026-08-15 | Build with this |
| BB-RS501 | Fits a bsa-road bottom-bracket shell | $28.00 | 93 g | maker’s page | 2026-08-15 | Build with this |
| BB-RS500-PB | Fits a bb86 bottom-bracket shell | $22.00 | 71 g | maker’s page | 2026-08-15 | Build with this |
Source
Source: each variant links the maker’s own page in the table above. Last checked 2026-08-15.
Checked against
The checker ran this model against every verified part below that it has a slot for, the same way it checks a build in the builder. What follows is the verdict it actually produced for that specific pairing — not a recommendation, and not a guarantee any of these parts fits your own bike.
- 3T Exploro Race (Frame) Will not fit
- 3T Fango LTD (Fork) No conflicts found
- 8bar Gravel Carbon Disc Fork v2 (Fork) No conflicts found
- 9point8 Fall Line R (Dropper Post) No conflicts found
- Acros ZS44/28.6 | EC44/40 Headset (Headset) No conflicts found
- All-City Cosmic Stallion LTD (Frame) Will not fit
6 of 498 counterparts with a page of their own that the checker actually probed this model against, in alphabetical order by brand and model — never by price, popularity or the verdict itself.