






Siena - Adventure / Gravel Bike

Siena - Adventure / Gravel Bike
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Key Features
Tackle Climbs Easily: The Shimano Tourney 3x7 drivetrain provides reliable gearing for hills and smooth shifting on any terrain.
Grip Every Trail: Ultra-wide 40c CST Tirent tires ensure solid traction on dirt paths and roads, keeping you in control.
Stop Safely Anytime: Avid BB5 disc brakes offer fast, smooth stopping power in all weather, boosting your confidence.
Ride Smoother: Vibration Dampening Technology (VDT) with thicker steel soaks up bumps for a more comfortable trip.
Explore Lightweight: The Super Light Aluminum (SLA) frame is durable and rust-free, making your bike agile and tough.
Speed Up Anywhere: Corsa TC20D wheels with 28 spokes and a 20mm rim cut through air for a fast, stable ride.
Control with Ease: UltraCompact flattop bars give multiple hand positions, cutting fatigue on long adventures.
Go Far Pain-Free: Optimized Geometry System (OGS) aligns you for less strain, keeping your back and neck happy.
Bounce Over Bumps: The lightweight Tommaso Custom Saddle flexes to absorb shocks, ensuring comfort on rough trails.
Testimonials
I am very happy with this bike. It is a better ride than I thought it would be. It really shifts smoothly and it looks great.
— Keith B.
We have bought two of these bikes and we love them. Very well built, easy shifting, and a pleasure to ride.
— Greg G.
I put a lot of time and research into getting
— Jimmy D.
the right bike at the right price, and this one was it! Customer service was exceptional!
The Tommaso Difference
Product Specifications
Frameset & Cockpits
Frame
Tommaso 6061 SLA Aluminum Compact Road Frame
Fork
Tommaso SST Steel with Aluminum Steer Tube
Sizes
XS, S, M, L, XL
Headset
1-1/8" Threadless Integrated
Handlebar
Tommaso Ultralight Alloy Compact Flat Top Bar
Handlebar Width
400mm (XS Frame) / 420mm (S, M, L Frames) / 440mm (XL Frame)
Handlebar Drop
125mm
Handlebar Tape
Tommaso Cork Tape Black
Stem
Tommaso Ultralight Sport Series Aluminum (+/- 7°)
Stem Length
75mm (XS Frame) / 90mm (S Frame) / 105mm (M Frame) / 120mm (L, XL Frames)
Saddle
Tommaso Saddle
Seatpost
Tommaso TRS Ultralight Race Series Aluminum 27.2mm
Pedals
Composite Flat
Drivetrain
Shifters
Shimano Tourney
Front Derailleur
Shimano Tourney (3-spd)
Rear Derailleur
Shimano Tourney (7-spd)
Cassette
Shimano Tourney 12-28t - 7spd
Speeds
3x7 (21 Total Speeds)
Crankset
Shimano Tourney Triple 30/39/50T
Crank Arm Length
170mm - All Sizes
Chain
KMC Z-51 (7spd Chain)
Bottom Bracket
Shimano BB-UN26
Brakes & Wheels
Brakes
Avid BB5 Disc Brakes
Brake Levers
Shimano Tourney
Wheelset
Tommaso TC-20D Wheelset - 28 Spokes
Tires
CST Tirent All-Terrain 700x40c
Tubes
700 x 40c Presta