Trek 2022 Session 29 Idler Pulley 0.5mm Washer

Model W5251170

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

$4.99 Comp. Value Sale price

Get back on the trail with genuine replacement hardware.

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  • Note: We do not offer delivery to PO boxes, hotels, and freight forwarding addresses. Bikes cannot be delivered to FPO/APO addresses due to size restrictions on deliveries.
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Retailer price

Retailer pricing applies when you purchase goods online that the shop has in stock today. Order is subject to retailer acceptance.

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

In-store pickup
Direct-to-home shipping

Genuine replacement parts

Original replacement hardware for your Session.

Product details

  1. Designed for 2022 Session 29
  2. Use with the 2022 Session 29 idler pulley 4.5mm black spacer
  3. Use with the 2022 Session 29 idler pulley 3.5mm grey spacer
  4. Swap orientation of spacers to match different brand crank/chainrings

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