Radio Echo Cr-Mo Cog (16T) Rear Cog
What the checker says18will not fit2check before you buy
Run variant by variant through the BMX 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 653 verified BMX parts in this catalog. 599 produced no finding of any kind.
Will not fit
Bmx cog driver, Rear Wheel / Hub. 18 more findings from the same check, on up to 1 of the 52 verified rear wheel / hubs each.
Open a variant in the builder to see the ones that apply to your own parts.
Check before you buy
- Check before you buywarning · ChainChain width mismatch: Rear cog = 3/32in, Chain = 1/8in. Sprocket, cog and chain should share one width class (1/8in or 3/32in) - a mixed stack runs but skips and wears fast. On 20 of the 21 verified chains in this catalog.
- Check before you buywarning · SprocketChain width mismatch: Sprocket = 1/8in, Rear cog = 3/32in. Sprocket, cog and chain should share one width class (1/8in or 3/32in) - a mixed stack runs but skips and wears fast. On 16 of the 18 verified sprockets in this catalog.
$32.29 MSRP·35 g
What the maker states
- Teeth
- 16 teeth
- Fits driver
- Fits a cassette driver
- Pitch
- 3/32"
Source
Source: the maker’s page. Last checked 2026-08-19.
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.
- Alienation Rush V3 / Black Sheep Rear Wheel (Rear Wheel / Hub) Will not fit
- Answer "Low Rider" Tapered Dagger Carbon Fork (20mm) (Fork) No conflicts found
- Answer 3/32" Performance Drive Chain (Chain) No conflicts found
- Answer Alloy Pivotal Seatpost (26.8mm) (Seatpost) No conflicts found
- Answer Alloy Pivotal Seatpost (27.2mm) (Seatpost) No conflicts found
- Answer Carbon Pivotal Seatpost (22.2mm) (Seatpost) No conflicts found
6 of 511 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.