Rondo Ratt CF

2022 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,699 Last known price
Suspension: Rigid
Wheels: 650b
Drivetrain: 2 × 11 31–48t / 11–32t
Gear range: 450%
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

MD High
SM High
SM Low
MD Low
LG High
LG Low
XL High
XL Low

The manufacturer did not publish rider heights for these sizes.

Components

15 of 19 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

RATT FLY CARBON Not identified

Suspension

1 part

Fork

TWINTIP 2.0 CARBON Not identified

Drivetrain

7 parts

Bottom bracket

EVO 386 with HTII adapter Not identified
Cassette
- SunRace
Chain
- Shimano CN-HG701
CN-HG701
Crankset
- Shimano GRX FC-RX810-2 11 speeds 48/31t
FC-RX810FC-RX8102
Front derailleur
- Shimano GRX
Rear derailleur
- Shimano GRX RD-RX810 11 speeds
RD-RX810
Shifters
- Shimano

Brakes

1 part

Brakes
- Shimano GRX BR-RX810
BR-RX810

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Grips

VELO COMFORT TAPE Not identified
Handlebar
- Easton
Saddle
- San Marco
Seatpost
- Rondo
Stem
- Rondo

Sizes and geometry

8 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size MD Low

Table

Reach 380mm

Stack 557mm

Wheelbase 998mm

Head angle 72.2°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 8 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	387	376	369	380	395	388	407	400
Stackmm	552	529	534	557	576	581	605	610
Top tube lengthmm	—	530	532	550	564	565	584	586
Seat tube lengthmm	520	490	490	520	540	540	570	570
Head tube lengthmm	135	110	110	135	160	160	190	190
Head tube angle	72.9°	72.9°	72.2°	72.2°	72.9°	72.2°	72.9°	72.2°
Seat tube angle	73.7°	73.7°	73°	73°	73.7°	73°	73.7°	73°
Chainstay lengthmm	415	415	415	415	415	415	415	415
Wheelbasemm	1004	986	980	998	1021	1013	1042	1035
Front centermm	601	583	575	593	617	608	638	630
Bottom bracket dropmm	75	75	70	70	75	70	75	70
Standover heightmm	795	775	782	802	810	820	835	835
Fork rakemm	60	60	50	50	60	50	60	50
Trailmm	40	40	53	53	38	54	38	53
Stack/reach ratio	1.43	1.41	1.45	1.47	1.46	1.50	1.49	1.53
Suspension and parts
Crank lengthmm	172.5	170	170	172.5	172.5	172.5	175	175
Handlebar widthmm	420	400	400	420	420	420	440	440
Stem lengthmm	90	90	90	90	110	110	110	110

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 31
Largest chainring: 48
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 26.6 in
Highest gear: 120.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: 386 EVO
Tire clearance: Maximum tire width: 47c; Additional specification: Wheel kind: 27.5, Maximum tire width: 38c; Additional specification: Wheel kind: 700
Tire width: 47c
Wheel material: Aluminum
Wheel size: 650b

Technical analysis

3 measures

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

Lowest gear

26.6 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2022
Sample: 1,202 bicycles with this information
Coverage: 84.1% of the class

Highest gear

120.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2022
Sample: 1,202 bicycles with this information
Coverage: 84.1% of the class

Shifting

Mechanical

373 of 1,429 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2022
Sample: 1,429 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.2 km/h
Highest gear: 46.0 km/h

Total gear range 450%

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: 26.6–120.0 gear inches
Class reference (p10–p90): 24.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2022
Lowest gear: 1202 bicycles with this information, 84.1% of the class
Highest gear: 1202 bicycles with this information, 84.1% of the class