IndoorTrainer

SRM IndoorTrainer ManualEnglish Version

Author: Rudolf SchobererEdited by: Andrea Wooles

©2007 Schoberer Rad Meßtechnik

Page 3

Table of Contents

Introduction

Optimal Training Conditions Year Round ................................................ 4Important hints before you start ................................................................ 6Setting up the IndoorTrainer ........................................................................ 6

Adjusting the gear shift.................................................................... 6Adjusting the magnetic brake......................................................... 6Maintenance of the magnetic brake ............................................ 7Adjusting the reach by reversing the handlebar........................ 7Clamping the sliding sections ........................................................ 7Adjusting the bike position ............................................................ 8Adjusting the resistance ................................................................. 8Sensor cable ...................................................................................... 8Speed indicator ................................................................................ 8

Range of settings ............................................................................................. 9Technical data .................................................................................................. 10

Page 4

Optimal training conditions all year round

If you want to start the season off in topcondition, you can’t take a break in winter.SRM has reacted to the many requests wereceived, and have developed a revolutionaryIndoorTrainer. We did not follow in thefootsteps of existing products, but startedfrom scratch to develop a revolutionary newproduct.

The result is a device that has already scoredtop marks in tests: the new IndoorTrainerwas developed with the needs of professionalcyclists in mind, who need to train with a highdegree of accuracy – but amateurs will alsobe able develop their skills and fitness on theSRM IndoorTrainer!

Features of the IndoorTrainer include:The new IndoorTrainer is fully adjustable, with a saddle and handlebarsthat can be adjusted to any position for cyclists who are between 165 and200 cm tall – from a relaxed upright position down to a racing position.An eight-gear Nexus hub allowing quick changes between different levels ofresistance for a wide range of kinetic energy at any cadenceResistance can be changed quickly for short intervals of high power outputRobust but attractive TIG-welded steel design providing a stable base fortraining and years of reliable useLarge flywheel mass that simulates kinetic energy realistically giving you the"sensation” of riding at a high speedOnline option showing planned and actual real-time data on a PC screenA second sensor cable means your SRM Training System can betransferred to your bicycle at any time quickly and easilyWide power range of the magnetic brakes which are immune to wear andtear: from 20 to 2,500 wattsCranks available in lengths from 165 to 180mm for Campagnolo orShimano axlesHigh-quality saddle and handlebar clip (Trainer is delivered without pedals)All additional options of SRM products are available, e.g. torque analysis,multi-length cranksNot available with Cannondale or MTB PowerMeterSoftware is available for downloadPrice starts from 2.950Euro without SRM System and VATImpressive Sprinting Quality

SRM IndoorTrainer

Page 5

The SRM IndoorTrainer got top marks – 5 stars – in all categories. This put thedevice in top position in the test. The testers were particularly impressed by thesprint quality of the SRM IndoorTrainer: " …outstanding properties of thedevice are the professional SRM measurement technology in the crankset plus the top braking power of 2,500 watts.”

Praise was loud for the eight-gear nexus hub in the flywheel – so important forprofessionals – with which it is possible to change quickly and accurately betweenthe different levels of resistance. Practical, too: the power measurement is notrestricted to the floor-mounted device alone because the cranks can be removedeasily and mounted onto a road bicycle.

The Tour testers’ conclusion: "Measurement technology instead ofanimation - a training machine uncompromisingly in line with theneeds of professionals.”

SRM IndoorTrainer

Page 6

Important hints before you start:

The flywheel can get very hot during training! Please be careful not totouch it!

It takes about 15 hours for the Shimano Nexus gear hub to run in.During this time the chain could fall off of the rear chainring if youpedal backwards. Please therefore avoid pedalling backwards duringthis run-in period. The hub will also become quieter once it has run in.

Setting up the IndoorTrainer

Place the IndoorTrainer on as level a section of floor as you can find, and thenuse the four adjustable feet to level it completely. You can use the two smallwheels on the bottom of the frame to make moving it around easier.

Adjusting the gear shift

The gear shift need to beadjusted before you use it. Toadjust it correctly you need toturn the lever on thehandlebar to gear 4, and thenlook at the two yellow lines onthe nexus gear hub. These twoyellow lines should line upexactly with each other. If theydon’t, turn the adjustmentscrew on the handle until theydo.

Adjusting the magnetic brake

Eventually the cable winch to adjust the distancebetween the magnets and the wheel can lengthenbecause of heavy use, so the magnet rocker hasto be readjusted from time to time.

Please adjust the rocker so that the distance ofthe magnets to the aluminium ring is about 3mmfor the first and last magnet. To clamp the cable,turn the adjusting screw outwards first.

Before you align the magnet rocker, put a piece of cardboard betweenthe magnet rocker and the flywheel. This is to make sure that themagnets don’t touch the flywheel, because it would be very difficult todetach them again.

SRM IndoorTrainer

Page 7

To adjust the upper catch you need to loosen the attachment of the magnetrocker with a hexagon wrench (don’t loosen it completely), and then move themagnet rocker as far as needed. Then retighten the screw.

The lower catch can be adjusted by turning the allen screw.

Maintenance of the magnetic brake

In order to keep the magnetic brake functioning flawlessly, it is important to puta drop of oil on the screws (see the red arrows) after about every 10 hours ofuse.

After every 15 hours of use, please tighten thescrew with which the magnet rocker is fixed tothe frame (see lower arrow). It is possible thatit could loosen with heavy use. Please makesure that you can still move the magnet rocker.

Adjusting the reach by reversing the handlebar

To significantly reduce the distance to the handlebar, you can remove theadjustment piece of the handlebar and turn it around completely. In order to dothis you need to take off the lid (see red arrow) and the handlebar. Then turn theadjustment piece of the handlebar 180° and remount the handlebar and the lidagain.

Clamping the sliding sections

By opening the quick-release levers, you can quickly adjust all of the dimensionsto meet your needs. You can pull the lever open, adjust the height or distance asneeded, and then close the lever again. They should be tight when done up, butdon’t overtighten them or they will stretch and will eventually snap.

SRM IndoorTrainer

Page 8

Adjusting the Bike Position

The SRM IndoorTrainer isconstructed for all ridersbetween 165 and 190cm height.You can adjust your seatposition until you find youroptimum position.The position of the saddle aswell as the handlebars areadjustable in height and setback/reach, as shown by the redarrows.

If you’re considering changingyour bike position, a great wayto find out what’s comfortablefor you is to use theIndoorTrainer to experiment. Slide the seat and the handlebars around to seewhat feels best for you, and then do a short, hard effort to make sure you canproduce power in that position.

Adjusting the Resistance

The IndoorTrainer has an 8x Shimano Nexus gear hub. The break for theflywheel is 20x adjustable with a magnetic band and can be operated by ahandlebar lever. Altogether, there are 160 different possibilities for adjusting theresistance.

Sensor cable

The sensor cable for the IndoorTrainer is madeextra long. For optimum functionality of thePowerMeter, there is an additional magnet fixedto the power sensor (the magnet can also befixed on the lower side).In case you have any problems, please check firstif this magnet is still in place.

Speed indicator

Your speed is indicated by a magnet that is fixed to the flywheel. This magnetpasses the speed sensor that is mounted onto the frame.In case the speed indicator doesn’t work properly, please check to see if theposition of both magnets is correct.

SRM IndoorTrainer

Page 9

Range of settings

Saddle Height (saddle to bottom bracket): 64 - 90 cm

Saddle Setback (front of saddle to front of bottom bracket): 7 - 17 cm

Handlebar Reach (bottom bracket to handlebar): 35 - 66 cm

Handlebar Height (handlebar to horizontal bottom bracket): 55 - 73 cm

SRM IndoorTrainer

Page 10

Support FrameOptional Features

Miscellaneous

Technical Data for the SRM IndoorTrainer

Key Features Specifications

Support Frame

Colour Red, Blue, or Black

Weight 60 kg

Brake Adjustable magnetic brake

Crank lengths Campagnolo 165-182.5mmShimano 165-182.5mmFSA 170-175mmMulti-length SRM cranks (150-190mm)

Optional Features

Pedalling force and torque analysis Yes

Syntace handlebars Yes

Science PowerMeter Yes

Track PowerMeter Yes

Chainrings 43-61 possible Yes

Guarantee 2 years

Delivery Time Depends on the colour, between 4-10weeks

Miscellaneous

MTB PowerMeter No

Cannondale PowerMeter No