Rennstahl 991 Speed Gravel

Name: Rennstahl 991 Speed Gravel
Brand: Rennstahl

2024 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,994 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 13 38t / 10–44t
Gear range: 440%
Frame: Steel
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 165–171
MD 168–180
LG 177–187
XL 184–201
XXL 195–205

Components

6 of 13 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.

Suspension

1 part

Fork

FALKENJAGD Titan Speed Gravel NEW X-12 standard FLAT-Mount for tires up to 33mm Not identified

X-12

Drivetrain

3 parts

Brakes

1 part

Brakes

group-compliant Not identified

Wheels and tires

1 part

Rims
- Fulcrum

Cockpit and contact points

5 parts

Handlebar
- Parapera
Pedals

without Not identified
Saddle

without Not identified
Seatpost
- Parapera
Stem

RENTAL STEEL Race light Black Not identified

Other components

2 parts

Bell

without Not identified
Racks

without Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size LG

Table

Reach 393mm

Stack 571mm

Wheelbase 997mm

Head angle 73.3°

Seat angle 73.3°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	382	387	393	404	414
Stackmm	534	550	571	594	605
Top tube lengthmm	530	550	565	585	605
Seat tube lengthmm	470	500	520	540	570
Head tube lengthmm	140	160	185	210	230
Head tube angle	72.5°	73°	73.25°	73.5°	74°
Seat tube angle	74°	73.5°	73.25°	73°	72.5°
Chainstay lengthmm	412	412	412	412	412
Wheelbasemm	976	987	997	1012	1021
Front centermm	575	586	595	610	618
Bottom bracket dropmm	73	73	71	70	68
Bottom bracket heightmm	276	276	278	279	281
Fork rakemm	41	47	46	45	45
Trailmm	67	58	57	56	53
Stack/reach ratio	1.40	1.42	1.45	1.47	1.46
Suspension and parts
Crank lengthmm	170	172.5	172.5	175	175
Handlebar widthmm	400	420	440	440	460
Stem lengthmm	80	90	100	110	120

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 13
Smallest sprocket: 10
Largest sprocket: 44
Lowest gear: 25.1 in
Highest gear: 110.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

25.1 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Highest gear

110.2 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

771 of 2,238 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2024
Sample: 2,238 bicycles with this information
Coverage: 99.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.6 km/h
Highest gear: 42.2 km/h

Total gear range 440%

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: 25.1–110.2 gear inches
Class reference (p10–p90): 23.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2024
Lowest gear: 1716 bicycles with this information, 76.6% of the class
Highest gear: 1716 bicycles with this information, 76.6% of the class