40–58 Tooth | Mid-2025+
40–58 Tooth | Mid-2025+
Low stock
Need help choosing? Ask TXC about fitment
In-stock orders dispatch within 48 hours
Excludes weekends, holidays and all preorders. U.S. and Canada only. Carrier transit time is additional.
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Description
Warp 9 520 rear sprocket for the Altis Sigma, with eight tooth-count options to suit your gearing setup.
Choose 40T, 42T, 44T, 48T, 50T, 52T, 54T, or 58T.
Fitment: Altis Sigma Mid 2025–current and Altis Sigma Limited Edition using a 520 chain. This does not fit Sigma models using a 428 chain; the supplier identifies 2024 through mid-2025 428-chain models as incompatible. Confirm your model and chain size before ordering.
Ships from the United States. Collective calculated shipping is shown at checkout; typical supplier dispatch is one business day, with verified tracking.
Shipping & Support
U.S. and Canada only. In-stock orders dispatch within 48 hours, excluding weekends and holidays. All preorders, custom and made-to-order items are excluded and follow their stated product-page timelines. Carrier transit time is additional.
Contact hours: Monday–Friday, 9 a.m.–5 p.m. Eastern Time.
See our shipping policy for real carrier and lead-time details by product.
Change-of-mind returns are not accepted. Orders can be cancelled before they ship (made-to-order items: before production starts). If your order arrives damaged, defective, or is not the item you ordered, we send a replacement or a refund once your claim is approved. See our refund, cancellation & exchange policy for the full terms.
Questions about fitment, your order, or a build? Contact our support team.
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