Tommaso Gran Sasso 29"

2020 MountainCross-country Manufacturer page

Last known price: $689

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 3 × 8 22–42t / 11–32t
Gear range: 555%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 165.1–177
MD 174–180.3
LG 182.9–189
XL 187–195.6

Components

15 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Tommaso 29" Alloy MTB Frame Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket
- Neco
B-910
Cassette
- Shimano
Chain
- KMC
Z-72
Crankset
- Shimano Altus FC-M315 8 speeds 22/32/42t
FC-M315
Front derailleur
- Shimano Altus
Rear derailleur
- Shimano Acera
Shifters
- Shimano Acera

Brakes

1 part

Brakes
- Shimano Altus BR-M315
BR-M315

Wheels and tires

2 parts

Rims

Mingda DP-20 Not identified

DP-20
Tires
- Kenda 50-Fifty
K-1104A

Cockpit and contact points

6 parts

Handlebar
- Zoom
Headset
- Tommaso
Pedals

Composite Flat Not identified
Saddle
- Tommaso
Seatpost
- Tommaso
Stem
- Zoom

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs reach, stack and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Top tube lengthmm	570	600	630	650
Seat tube lengthmm	380	400	450	520
Head tube lengthmm	100	110	120	130
Head tube angle	71°	71°	71°	71°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	450	450	450	450
Wheelbasemm	1069.1	1099.4	1129.8	1150.2
Standover heightmm	745	762	795	825
Fork rakemm	46	46	46	46
Suspension and parts
Crank lengthmm	170	175	175	175
Stem lengthmm	110	110	110	110

Not published by the manufacturer: Reach, Stack, Front center, Bottom bracket drop, Bottom bracket height, Trail, Stack/reach ratio, Front travel, Rear travel, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 19.9 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,085 bicycles with this information
Coverage: 86.0% of the class

Lowest gear

19.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,057 bicycles with this information
Coverage: 83.8% of the class

Highest gear

110.7 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,057 bicycles with this information
Coverage: 83.8% of the class

Shifting

Mechanical

57 of 1,261 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2020
Sample: 1,261 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 42.4 km/h

Total gear range 555%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 19.9–110.7 gear inches
Class reference (p10–p90): 17.4–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2020
Lowest gear: 1057 bicycles with this information, 83.8% of the class
Highest gear: 1057 bicycles with this information, 83.8% of the class