Bedienungsanleitung Stevens Road - 2020 (Seite 17 von 28) (Englisch)

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The Brake System

Brakes are used for adjusting one’s speed to the surrounding terrain and traf-

ﬁc. In an emergency situation, the brakes must bring the STEVENS bicycle to a

halt as quickly as possible. In the event of such emergency braking, the rider’s

weight shifts forward abruptly, thus reducing the load on the rear wheel. The rate

of deceleration is primarily limited by the danger of the rear wheel losing contact

with the ground resulting in an overturning of the STEVENS bicycle and secondly

by the tyres' grip on the road. Such a problem becomes particularly acute when

riding downhill. Therefore, in case of an emergency braking situation you must try

to shift your weight back and down as far as possible.

Actuate both brakes simultaneously and bear in mind that, due to the weight

transfer, the front brake can generate a far better braking effect on a surface with

good grip. The braking conditions on unpaved surfaces differ, i.e. overbraking the

front wheel can make the wheel slip away. Therefore, be sure to practise braking

on different kinds of surface in an area free of trafﬁc.

For more information see chapter “The Brake System” in your comprehen-

sive STEVENS user manual as well as in the instructions of the component manu-

facturers on the enclosed CD-ROM.

Danger:

Ensure that braking

surfaces and brake

pads are absolutely free

of wax, grease and oil.

Risk of accident!

Danger:

Be careful while getting

used to the brakes.

Practise emergency

stops in a place clear

of trafﬁc until you are

comfortable controlling

your STEVENS bicycle.

This can save you from

having accidents.

Danger:

Wet weather reduces

the braking effect and

the road grip of the

tyres. Be aware of

longer stopping distanc-

es when riding in the

rain, reduce your speed

and actuate the brakes

carefully.

Caution:

When replacing any

parts, be sure to only

use parts that bear the

appropriate mark and,

to be on the safe side,

original spare parts. Your

STEVENS dealer will be

pleased to help you.

The Gears

The gears of your STEVENS bicycle serve to adjust the gear ratio to the terrain

you are riding on and the desired speed.

In the case of derailleur gears a low gear where the chain runs on the small

chainring and on a large sprocket allows you to climb steep hills with moderate

pedalling force. You must, however, pedal at a faster pace or higher frequency.

High gears (large chainring, small sprocket) are for riding downhill. Every turn of

the pedals takes you many metres forward at correspondingly high speed. Con-

tinue pedalling during gear shifting, however, at clearly reduced pedalling force.

Modern bicycles can have up to 33 gears. As there are, however, overlapping

ranges, actually 15 to 18 gears are usable. It is not advisable to use gears which

involve an extremely oblique run of the chain, as this reduces power transmission

efﬁciency and hastens wear of the chain. An unfavourable run of the chain is when

the smallest chainring is used with one of the two or three outermost (smallest)

sprockets or when the largest chainring is used with one of the inmost (largest)

sprockets.

Note:

For more information

on Shimanos’s Di2 and

SRAM’s eTap see chapter

“The Gears” in your

comprehensive STEVENS

user manual as well as

in the instructions of the

gear manufacturer on the

enclosed CD-ROM.

Danger:

The assignment of brake lever to brake calliper can vary, e.g. left lever acts

on front brake. Have a look at the bike card and check whether the brake

lever of the front brake is on the side you are used to (right or left). If it is

not, ask your STEVENS dealer to switch the brake levers before you set off

for the ﬁrst time.

Note:

Read in any case the chapter “The Brake System” in your comprehensive

STEVENS user manual as well as in the instructions of the brake man-

ufacturer on the enclosed CD-ROM and make yourself familiar with its

operation before your ﬁrst ride.

In the case of multi-speed hubs and gearbox shift systems (Pinion) “1”

stands for the ﬁrst, lowest gear. The gears are shifted through one after the other,

if possible without turning the pedals, at least however at reduced pedal pressure.

The highest number stands for the highest gear.

NuVinci gear hubs are designed to allow stepless shifting by means of a twist

grip within their range of gear ratio. With the NuVinci hub the force transmission is

ensured by balls instead of toothed wheels.

With NuVinci the actual gear ratio is indicated to the cyclist on the display. If

the cyclist climbs uphill, the gear ratio is low, on level ground the gear ratio is high.

For more information see chapter “The Gears” in your comprehensive

STEVENS user manual as well as in the instructions of the gear manufacturer on

the enclosed CD-ROM.

Caution:

Always make sure chang-

ing gears makes as little

noise as possible and is

absolutely jerk free.

Caution:

Practise shifting gears in

a place free of trafﬁc until

you are familiar with the

functioning of the levers

or twist grips of your

STEVENS bicycle.

Note:

Read in any case the

chapter “The Gears”

in your comprehensive

STEVENS user manual as

well as in the instructions

of the gear manufacturer

on the enclosed CD-ROM

and make yourself

familiar with its operation

before your ﬁrst ride.

S - 32 | English English | S - 33

Stevens Road - 2020 Seite 17

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