Short time

If you maintain your MERIDA eONE-EIGHTY regularly during the season, you don’t need to take any special measures.

Store your eONE-EIGHTY in a dry, well-ventilated place.

Longer time

The tubes gradually lose air during longer periods of inactivity. If the eONE-EIGHTY is left on flat tyres for a longer period of time, its structure may be damaged. Therefore, hang up the wheels or the entire eONE-EIGHTY or check the tyre pressure regularly.

Clean your eONE-EIGHTY and protect it against corrosion. You can obtain special care products for this from your MERIDA dealer.

Remove the rechargeable battery from your eONE-EIGHTY. Ideally, the rechargeable battery should be stored with a charge level of 30% and at temperatures between 0°C and 20°C in a dry environment. A well-ventilated room with a smoke detector, away from sources of heat or easily flammable materials, is best suited for storage.

To ensure the operational safety of your MERIDA eONE-EIGHTY, the component bolts must be tightened carefully. This should be checked both before the first ride and at regular intervals.

Use a torque spanner with which the correct screw torque can be set. Approach the prescribed maximum screw torque from below in half Newton metres and check the tight fit of the component again and again in between. Do not exceed the maximum screw torque specified by the manufacturer.

For parts for which no information is available, start with 2 Nm.

You can find all information about your e-system at:(www.bosch-ebike.com)

Option 1: Purion 200 control unit

The Purion 200 control unit is intended for controlling your e-bike and optionally for controlling an additional smart system generation on-board computer.

Figure 3. Purion 200 control unit

Item	Control element
1	On/Off button
2	Display
3	Ambient light sensor
4	Selection button
5	Button to increase assistance level + / Bicycle lighting
6	Button to reduce assistance level - / Pushing aid
7	Bracket
8	Fastening screw
9	Diagnostic connection (for maintenance purposes only)
10	Scroll left
11	Scroll right

Purion 200 operation via the 5-button control unit

Figure 4. Purion 200 operation via the 5-button control unit

Item	Control element
1	Scroll left
2	Scroll right
3	Increase assistance level / scroll up
4	Reduce support level / scroll down
5	Short press: Selection button / Open settings menu on the status screen / Acknowledge error codes Press and hold (>1 s): Open quick menu (from any screen except status screen)

Option 2: Purion 400 on-board computer

The Purion 400 on-board computer is designed to display riding data on your smart system generation e-bike. A compatible smartphone with the eBike Flow app is required to use the Purion 400 on-board computer to its full extent.

Figure 5. Purion 400 on-board computer

Operation via system controller and Mini Remote Dropbar

Figure 6. System controller and Mini Remote Dropbar operation

Item	Control element
1	Mini Remote / Mini Remote Dropbar control unit
2	System controller operating unit
3	LED indicator light
4	Increase assistance level + / Bike lighting
5	Selection button
6	Button to reduce assistance level - / Pushing aid
7	Fastening screw for bracket
8	Bracket
9	Rubber insert / battery holder
10	Riding mode LED
11	ABS LED (optional) / Ambient light sensor
12	On/Off button
13	Charge status display for e-bike rechargeable battery
14	Mode button

1. Open the cover of the charging socket on the seat tube by turning it clockwise.
   
2. Insert the charging cable into the charging socket with the indentation facing downwards. The plug only fits into the charging socket in one position.
   
3. Once charging is complete, remove the charging cable.
   
4. Close the cover of the charging socket by turning it clockwise until it clicks into place.

Procedure

1. Lift the lever of the Fidlock fastener on the battery cover on the down tube.
   Figure 7. Lever of the Fidlock fastener
   
   
2. Swivel the battery cover downwards and towards the front wheel.
   Figure 8. Removing the battery cover
   
   
3. Turn the key clockwise in the lock. The battery falls into the safety position.
   Figure 9. Unlock the battery
   
   
4. Reach around the battery with one hand.
5. With the other hand, activate the safety lever on the upper battery holder.
6. Carefully remove the battery downwards.
   Figure 10. Removing the battery
   
   

On a bike with a standard straight top tube, there should be at least 25 mm between you and the top tube when you are standing over the bike.

The handlebar height relative to the saddle and the distance between the saddle and handlebars determine the inclination of the back. With low handlebars, you sit sportily and put a lot of weight on the front wheel.

The Ahead stem system is available, which can be used to vary the handlebar height

Stems for threadless Ahead® systems

On MERIDA bikes with Aheadset headsets, the stem is used to adjust the bearing preload. If the stem position is changed, the bearing play must be readjusted.

Figure 13. Stems for threadless Ahead systems

You can adjust the height to a limited extent by moving the spacers or flipping the stem on so-called flip-flop models.

The diameter and width of the original wheels and tyres were selected to ensure sufficient clearance between the rotating wheel and tyre and the frame, fork and other components. Any modification to the wheels or tyres can affect this tyre clearance. Tyres that are marked as the same size may have different widths when they are fitted, inflated and installed on the bike. Always check the tyre clearance with the tyres fitted and fully inflated, even if the spare tyres are the same size as the tyres to be replaced.

The distance between a properly inflated tyre and any part of the bike should generally be at least 6 mm. Always maintain sufficient distance between the rotating rim and tyre and the frame, fork and other components. Check the frame and fork regularly for damage and the area around the wheel for any foreign bodies or objects.

Figure 14. Tyre clearance on the front wheel

Figure 15. Tyre clearance on the rear wheel

When riding the bicycle, the tyres must not touch the fork, frame or other components if a suspension element is fully compressed or the wheels are deformed by lateral forces. With a suspension fork, for example, the tyre must have a minimum distance to the fork crown even when the fork is fully compressed.

New disc brakes must be braked in. Braking in helps to ensure constant and powerful braking performance as well as quiet braking under most riding conditions.

1. To do this, get on the saddle and accelerate the bike to a moderate speed on a flat stretch of road.
2. Then pull hard on the brake levers until walking speed is reached. Repeat this process twenty times.
3. Accelerate to a higher speed and brake the bike to walking speed. Repeat this process ten times.
4. Allow the brakes to cool down before continuing the ride.
5. Contact your MERIDA dealer if the braking effect of your brakes decreases or the pressure point becomes spongy.

Some bikes are equipped with rims and tyres that can be ridden without inner tubes. Tubeless rims and tyres have special rim and tyre bead profiles that form an airtight seal when fitted correctly.

Tubeless rims are available in various designs and additional components may be required for a completely tubeless set-up. Depending on which components are required, such rims may be known as “Tubeless Compatible” or “Tubeless Ready (TLR)”. Read the rim manufacturer’s instructions carefully to find out which additional components are required for the conversion to a tubeless set-up and for its maintenance.

Tubeless rims are available with a variety of profiles, which can affect the type of tubeless tyre that can be fitted to the rim. Rim manufacturers may, for example, designate a rim as a hook-bead rim or a hookless rim - depending on whether there is a hook-shaped projection on the rim flange or not. The bead profile of tubeless tyres also differs from manufacturer to manufacturer. Given the wide range of tubeless tyres and rims available, the compatibility of tubeless tyres with different types of tubeless rims varies considerably.

• Only use tubeless tyres that are expressly approved by the rim or tyre manufacturer for use with the rims used.
• Read the rim and tyre manufacturer’s instructions carefully before fitting.
• If you have any questions about the compatibility of tubeless tyres and rims, please contact your MERIDA dealer.

Fitting tubeless tyres on tubeless rims requires specialist knowledge, skills and tools. For a tubeless set-up, additional components such as rim tape, valve inserts, sealant and tubeless-compatible tyres may need to be fitted.

Tyre and rim width/diameter

Rims and tyres are available in many diameters and widths. The nominal diameter of the rim (1) must match the nominal diameter of the tyre (2) and the width of the rim (3) must be compatible with the width of the tyre (4).

Figure 16. Rim dimensions

Figure 17. Tyre dimensions

The following section explains the settings of the chassis for the eONE-EIGHTY.

Your bike is equipped with a thru axle to give the suspension fork and rear triangle the necessary stiffness.

Removable axle lever

Our MERIDA TR rear axle lever can be used to tighten the rear axle, but when removed it also serves as a 6 mm and 4 mm Allen key, which can be used to tighten many other bolts on the bike.

To use the removable axle lever, pull out the lever on the non-drive side of the bike. To reinsert it, simply push it back into the centre of the thru axle.

Figure 19. Axle lever

The pedals each have a right-hand or left-hand thread. The pedals are labelled with an “R” or “L” on the assembly side.

1. Place the two washers included in the delivery contents on both pedal axles.
   Figure 20. Pedal with washer
   
   
2. Turn the left pedal anti-clockwise into the thread in the left crank arm.
3. Tighten the pedal with a tightening torque of 35 Nm.
   Figure 21. Left pedal
   
   
4. Turn the right pedal clockwise into the thread in the right crank arm.
5. Tighten the pedal to 35 Nm.
   Figure 22. Right pedal
   
   

1. Check all screws for tightness, correct connection and correct fastening
2. Check quick release, thru axles, screw connections on the front and rear wheel and other components
3. Check the plug connections on the battery, control panel and display, as well as on the drive unit
4. Check the battery in its holder and the locking mechanism

Bounce your bike from a low height onto the ground. Investigate any rattling noises that may occur. If necessary, check the bearings, screw connections and the correct seating of the battery.

Carrying out a brake test:

1. Test the brakes while at a standstill by pulling the brake levers towards the handlebars and applying the full braking force.
2. Check that the front brake is working correctly. To do this, ride the bike at a slow speed and apply the front brake. The bike should stop immediately.
3. Repeat this procedure for the rear brake as well.

The pressure point must be stable immediately. If you can only feel a stable pressure point after actuating the brake lever several times, you should have your bike checked immediately by your MERIDA dealer.

Figure 23. Handlebar angle

1. Make sure that the handlebars are at a 90° angle to the front wheel.
2. Check that the handlebars are firmly seated so that they do not twist during the ride and cause you to fall.
3. Make sure that no cables are pulled or can get caught when you are steering.
4. Ensure that the handles are firmly seated and in good condition. If the grips are loose or have cuts, cracks or worn areas, replace the grips or have them replaced by your MERIDA dealer.
5. Make sure that the handlebar ends and any attachments are sealed with plugs. If the handlebar end plugs are damaged, replace them.
6. For handlebars with attachments at the end of the handlebars, make sure that they are clamped in accordance with the manufacturer’s specifications for handlebars and attachments.
7. Also make sure that handlebars, attachments, grips, brake levers and gear shifter are correctly attached and that safe handling of the bicycle, including unhindered steering, braking and gear shifting, is ensured.

1. Check that the saddle is correctly aligned and in line with the top tube.
2. Check that the saddle rails or clamp are firmly seated to prevent the saddle from twisting, tilting or shifting during the ride.

Note the error messages or codes shown on your display. Correct this before you set off Troubleshooting.

The integrated steering stop can twist in the event of a fall. Therefore, after a fall, it must be ensured that the steering stop is still centred by checking when stationary whether the handlebars can be turned to the left and right to the same extent.

Figure 24. Checking max. turning angle

1. Check whether the frame or suspension fork is broken or bent.
2. Check the carbon frame for cracks or soft spots in the carbon if your bike has a carbon frame.

1. Check the shifting system by shifting through all gears and making sure they run smoothly without any delays or noises.
2. Check the wheels by spinning them and looking for lateral runout, dragging brakes and loose spokes or axle play.

If you find any damage to these parts, do not continue your ride!

Even if no damage can be detected, pay very close attention to any unusual noises from your bike as you continue your ride. These could indicate damage or other problems. Do not ride any further if you notice any unusual noises.

If you have any doubts about the condition of the material after a fall or accident, please always contact your MERIDA dealer. Some consequences of a fall or accident can only be recognised if the bike is completely dismantled and examined for cracks or other signs of damage.

Our MERIDA TR rear axle lever can be used to tighten the rear axle. When it is removed, it also serves as a 6 mm and 4 mm Allen key, which can be used to tighten many other screws on the bike.

To use the removable axle lever, pull out the lever on the non-drive side of the bike. To reinsert it, simply push it back into the centre of the thru axle.

Figure 25. Axle lever

A 6 mm Allen key is required to loosen the MERIDA thru axles on the rear wheel and fork. To do this, use the removable axle lever on your bike.

Handling the hex socket thru axle

The following section explains how to fit the rear wheel.

1. Apply grease to the thread of the thru axle.
2. Insert the rear wheel so that the opening for the thru axle of the hub and dropout are aligned.
3. Push the thru axle from the non-drive side through the dropout and through the hub. The thru axle must touch the thread of the opposite dropout.
4. Tighten the thru axle hand-tight by turning the axle lever clockwise.
5. Remove the axle cover Removable axle lever
6. Tighten the thru axle to 9 - 13.5 Nm using a torque spanner and a 6 mm hex bit.

The following section explains how to remove the thru axle from the rear wheel.

1. Turn the axle lever anti-clockwise to release the thru axle.
   Figure 26. Turning the axle lever
2. Remove the thru axle in the direction of the non-drive side.
   Figure 27. Removing the thru axle
3. Remove the rear wheel.

The following user manual from the respective suspension fork manufacturer must be observed when fitting the thru axle to the front wheel:

• Rock Shox: (www.sram.com)
• Fox and Marzocchi: (tech.ridefox.com)
• SR Suntour: (www.srsuntour.com)

To remove the thru axle from the front wheel, please refer to the following user manual from the respective suspension fork manufacturer:

• Rock Shox: (www.sram.com)
• Fox and Marzocchi: (tech.ridefox.com)
• SR Suntour: (www.srsuntour.com)

Proper lubrication ensures that the chain runs smoothly and quietly and extends its service life.

Depending on the degree of soiling, the chain must be cleaned at regular intervals to remove dirt and oil deposits. Special chain degreasers are not required.

Figure 28. Lubrication of the chain

Maintenance includes a complete check of all components.

The new bike should always be checked after the first ride.

After

• 100 km to 300 km of trips or
• 5 hours’ to 10 hours’ riding time or
• after four to six weeks, but
• after three months at the latest,

you should take your bike to your MERIDA dealer for an initial inspection.

The times given are intended as a guide, with an annual mileage of between 1,000 km and 2,000 km or between 50 hours and 100 hours of riding. The case that occurs first is decisive.

If you regularly ride on poor roads, the maintenance intervals will be shortened in line with the rougher use.

You can also carry out the maintenance work yourself if you have manual skills, some experience and suitable tools, e.g. a torque spanner. If defects are identified during the inspection, take action immediately.

Your MERIDA dealer will provide you with expert support on all maintenance issues.

Spare parts can be ordered from your MERIDA dealer. The required MERIDA part numbers can be found in the exploded views.

A longer mudguard (Long Fender) can be retrofitted to your bike.

Figure 29. Long Fender front view

Fitting the different mudguards

Your bike can be fitted with two different mudguards. The short mudguard protects the damper, the seat tube and the bearings from dirt and stone chips. We recommend that you always leave the short mudguard fitted. It also has the function of holding the chainstay protector in place.

Figure 30. Long Fender side view

If you are riding on muddier trails, there is the option of an additional long mudguard. This complements the short mudguard and offers significantly more protection against mud and water.

Your bike contains a toolbox and a multi-tool under the saddle. The V-MOUNT allows the toolbox and multi-tool to be fitted under the saddle.

MERIDA Multi-tool 12-in-1

Figure 35. Multi-tool

Multi-tool V-Mount box for installation under the saddle

Figure 36. Multi-tool on the saddle

The multi-tool contains the following tools:

• Allen keys: 2, 2.5, 3, 4, 5, 6, 8 mm
• Screwdriver: +/-
• Torx: T10, T25, T30

To use the multi-tool, open the flap of the toolbox and pull it out. To stow it away, simply push it back into the toolbox and close the flap.

To remove the whole box from the saddle, take the tool out of the box and detach the flap from the box by pulling the box out. Unscrew the box from the V-MOUNT using a 3 mm Allen key.

The BOSCH PowerMore 250 Range Extender can be retrofitted to your bike to increase the capacity of the rechargeable battery.

The matching cable is the Bosch PowerMore cable 100 mm away from the battery holder.

The BOSCH PowerMore battery holder and the Range Extender cable are required for installation.

Figure 37. Range Extender

The maximum fork length, measured from the axle to the fork crown, is 596 mm. This corresponds to the dimensions of conventional suspension forks with 180 mm travel.

A maximum of 30 mm head tube spacers may be used.

The exploded view can be downloaded as a PDF from the following link:

Exploded view

Figure 38. Exploded view