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    ← Sprockets
    TST WORX 420 Lightweight Aluminum Rear Sprocket for Honda Grom / Monkey / Super Cub

    TST Industries

    TST WORX 420 Lightweight Aluminum Rear Sprocket for Honda Grom / Monkey / Super Cub

    $57.99

    Fits 1 Honda model

    • Monkey2019–2026

    Product Feature Video Features CNC machined from lightweight 6061 aluminum alloy using advanced techniques Full sprocket treatment with Type III black anodized hard-coat for long-lasting durability Proprietary matte black anodized finish Proprietary tooth profile Ultra-smooth tooth transition geometry Roughly 65% lighter than the stock Honda Grom rear sprocket Description When it comes to increasing the power delivery of the mighty Honda 125cc engine, the rear sprocket is a great place to start. By upgrading to a lightweight aluminum sprocket, you're able to decrease parasitic power loss in the drive train. With a roughly 65% decrease in the weight of the sprocket, that means it takes less power to turn and therefore transfers more of that power to the rear wheel. That may not seem like a huge deal on a standard bike, but when it comes to the Honda Grom, Monkey, or Super Cub 125, every bit of power that you can get to the wheel counts and makes a difference. The blend of high-quality material, advanced hardening procedures, lightweight design, proprietary tooth profile, and ultra-smooth tooth transitions ensure exceptional performance even during the most demanding riding situations. We produce every TST WORX Rear Sprocket from 6061 aluminum alloy. This high-quality material is CNC machined using a propriety holding plate process developed to eliminate vibration during the machining process and ensure extreme precision and material integrity. We then treat the entire rear sprocket with a matte black Type III hard coat anodizing process that penetrates the aluminum and builds an ultra-hard surface layer, resulting in a lightweight sprocket with exceptional durability characteristics capable of taking on the rigorous demands of the street and track. Application Spec Sheet Model Years OEM Pitch OEM Front Sprocket OEM Rear Sprocket Chain Length Honda Grom 2022 - Current 420 15 38 108 Honda Grom 2013 - 2020 420 15 34 106 Honda Monkey 2019 - 2021 420 15 34 106 WORX Rear Sprocket Weight Guide Sprocket Tooth Count Weight 2022 Grom OEM Sprocket - 38 Teeth 394 g WORX - 36 Teeth 140 g

    Brand
    TST Industries
    Category
    Sprockets
    Part number
    SPKT30-42036
    Weight
    0.75 lb
    Where to buy

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    TST Industries$57.99Buy

    Price history

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    $52$54$56$58$60$62$646:48 PM12:48 AM6:48 AM12:48 PM6:48 PMTST Industries — $57.99 on 9/25/2026
    TST Industries

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