The 37T sprocket made a noticeable difference on my Tuttio. Acceleration feels a lot stronger now, especially pulling away from stops or climbing hills. The bike also sounds throatier, which I like. Getting the chain alignment perfect took some fiddling, but once it was dialed in it’s been solid. Part quality seems good. Instructions could have been clearer, but I’m happy with the result.
1
/
of
2
Tuttio Upgraded Sprocket 37T 420 (Surron Style)
Tuttio Upgraded Sprocket 37T 420 (Surron Style)
Regular price
$40.00 USD
Regular price
Sale price
$40.00 USD
Unit price
/
per
Shipping calculated at checkout.
In stock
Couldn't load pickup availability
Picture shown is 53T (Reference) - Real Product is 37T
Tuttio Upgraded Black Sprocket
Upgrade your bike with the Tuttio Upgraded Sprocket, now in smaller, precision-engineered size and a black finish. Designed for riders who demand both performance and style, this sprocket delivers a higher top speed, quicker acceleration, and a cleaner, minimalist look.
Key Features:
-
Smaller diameter for reduced rotational resistance
-
Matte black anodized finish for a sleek, modern look
-
Lightweight yet durable construction
-
Optimized for high-speed performance
-
Compatible with standard chains and cranksets

Customer Reviews
Overall rating: 4.0 / 5 from 1 reviews.