Chain falling saver

During fast shifting looking for the quicker step with the front smaller chainring, in particular when the front feraileur isn't perfectly adjusted, the chain can fall down on the bottom bracket. This small band on the vertical tube is a guide for the chain, whom bouncing off doesn't fall down.

Brand	J Sport
SKU / MPN	307200255
GTIN / Barcode	8005586223760
Condition	Brand new, in original manufacturer packaging
Availability	In stock — ready to dispatch

Dispatch	1–2 business days after payment confirmation
Delivery	Free tracked shipping Australia-wide. Dispatch within 1–2 business days, delivery typically 3–5 business days (4–7 days total); remote areas may take a little longer. We ship within Australia only.
Returns	14-day returns — see our Return & Refund Policy. Consumer guarantees under the Australian Consumer Law apply.
Warranty	Manufacturer warranty terms vary by brand. If warranty coverage matters for this purchase, contact us before ordering and we will confirm what applies to this item.