Neptune Helm Sprocket (Silver) (39T)
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Part#: 2172-139-SL
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Neptune BMX Helm Sprocket
Features:
- CNC Machined 6061 aluminum
- Laser-etch logos
- Fits 19mm 3-piece crank spindles
- Made in the USA
Specifications:
Sizes: 37T - 44T
This product was added to our catalog on October 22, 2020
Bernd Otterbach
Verified Owner
Tuesday, Jul 30 2024 (2 months ago)
Neptune Helm Sprocket (Silver) (39T)
hole for the spindle is not center, on both sprockets i ordered
Joe Hiltz
Verified Owner
Thursday, Jun 29 2023 (about a year ago)
Neptune Helm Sprocket (Silver) (43T)
Fit and look like my old school flight sprocket. Worked excellent so I can preserve the old one
