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16

Figure 6. 

ADJUST THE PADS

Back the adjustment knob off (counterclockwise) un-

til the rotor spins freely. Now you can dial the pad in 

or out until you find the 

brake action you prefer 

(make sure, of course,

that there’s no drag on the 

rotor). If you can’t seem to 

get the feel you like, or the 

rotor is dragging, repeat 

Figure 5.

FINE TUNING

BEFORE EACH RIDE

• Check cables for signs of wear or fraying.

• Squeeze the brake lever firmly and check for proper 

brake function. Adjust for pad wear if necessary.

• Check pads for wear and replace if necessary.

• Ensure rotors are free of foreign substances and 

oils.

CABLE SLACK ADJUSTMENT

Use the barrel adjuster on thebrake 

lever to remove any cable slack from 

the system. Turn the adjuster out until 

there is no free play in the lever but not 

so far that the torque arm on the caliper 

is advanced. The torque arm should 

return completely when the brake lever is released. If 

necessary, repeat Figure 6.

Note: New cables will stretch and require adjustment.

PAD BREAK-IN

It may take anywhere from 20 to 40 complete stops 

to break in Avid pads. You may begin to notice an 

increase in braking power after the first ride. Brake 

noise can occur not only during the break-in period 

but off and on throughout the life of the brake pads. 

Noise is dependent upon factors such as brake setup, 

rider weight, riding style, braking style, and riding 

conditions (i.e. dust, soil, and contamination of fric-

tion surfaces).

CARE AND CLEANING

Extreme care must be taken when cleaning both the 

bicycle and its new disc brakes. Under normal use, 

it is not necessary to clean the caliper rotor or pads. 

If necessary, use only water and dish detergent to 

wash the caliper and rotor – being sure to thoroughly 

rinse all soap residue from the rotor. Dry with a clean 

paper towel.

SPRING TENSION ADJUSTMENT

If necessary, spring tension can be 

adjusted by turning the spring tension 

adjustment screw with a 2.5mm hex 

wrench.

Turning the screw clockwise increases 

spring tension,

which equals harder lever pull.

PAD WEAR ADJUSTMENT

Over time, you will need to compensate for brake 

pad wear.

You can do so with two 

very simple adjustments:

1. Unscrew (counter-

clockwise) the barrel 

adjuster on the caliper.

2. Turn the inboard pad 

adjustment knob clock-

wise.

Both of these adjustments move the brake pads 

closer to the rotor. You do need to adjust both pads 

as they wear.

Try different settings until the brake feels just the way

you like.

NOTE: While you can perform a similar adjustment 

on the barrel of your brake lever, we suggest that you 

adjust for pad 

wear at the cali-

per. That way you 

leave the brake 

lever for on-the-

fly adjustments.

PAD REPLACEMENT

A pad should be replaced when its total thickness 

(backing plate and friction material) is less than 

3mm.

1. REMOVE THE OLD PADS

Back the inner adjustment knob all the way out 

(counterclockwise). Pull the pad spreader clip from 

between the pads, then pull the pads out of the cali-

per one at a time.

2. INSTALL THE NEW PADS AND SPREADER

Insert the new pads one at a time into the caliper.

VERY IMPORTANT: MAKE SURE YOU PLACE 

THE BLACK PAD ON THE INNER SIDE (TO-

WARDS THE WHEEL) AND THE BLUE PAD ON 

THE OUTSIDE (AWAY FROM THE WHEEL.) 

ONCE THE PADS ARE IN THE CALIPER YOU 

Barrel adjuster

Make sure you tighten the 

locknut after you adjust.

Summary of Contents for R750

Page 1: ...RAMBO Bike Owner s Manual For Pedal and E bike Models ...

Page 2: ...follow the links to register your new bike Your registration is very important so Rambo Bike can communicate any updated safety informa tion If you choose not to register make sure you check our web site often for any safety instructions or information we may post or contact Rambo directly Assembly of your new bicycle See Section 4 for Assembly Instructions IMPORTANT INFORMATION BEFORE YOUR FIRST ...

Page 3: ...he front tire if the handle bar is turned while you are pedaling This will result in a dangerous situation which may cause you to lose control and fall This does not usually occur at normal riding speeds INSPECT YOUR BIKES FRAME AND FORK If you notice during your pre ride inspection that the frame or fork has any visible damage cracks dents or problems do not ride your bike and have it repaired im...

Page 4: ...y need the levers adjusted closer to the handlebar This ad justment or brake lever replacement should be done by a qualified bike technician or bike shop Handlebar stem and front wheel alignment Make sure the front wheel and handlebar stem are aligned in the proper orientation of each other Turn the handlebar from side to side with the front wheel locked between your knees to test the stem connect...

Page 5: ...inspection and or repair Careful ly inspect your bide before and after each ride Certain types of impacts can affect the components of your bike and cause them to fail unexpectedly After any impact or crash thoroughly inspect all the parts of your bike for damage A crash or other impact can put extraordinary stress on the bike An impact or high force is any situation such as hitting a hole or obst...

Page 6: ...rlier than you would in normal road and weather conditions Never ride in storms with high winds and lightening conditions Night Riding and Poor Visibility Riding at dawn dusk during poor visibility or night riding is extremely dangerous Your reflectors are not a substitute for required bike lights Motorists and pedestrians may not be able to see a bicyclist during poor visibility conditions Consul...

Page 7: ...e riding on rough terrain even if a short dis tance share your destination and route with a compe tent adult Never ride alone in remote areas Carry a signaling device such as a whistle cell phone or 2 way radio Take identification and emergency food and drink Wear appropriate clothing and safety gear for type of riding you plan on Carry a first aid kit Respect local regulations and rules Private P...

Page 8: ...one stops the wheel from spinning this would be your front brake When preparing to slow down or stop gently apply both front and rear hand brakes at the same time being careful not to over apply the front brake which could cause you to lose control and fall Shifting Bikes often come equipped with index shifters These are usually mounted on the handlebars within easy reach Shifting gears into diffe...

Page 9: ...st for excess wear or damage Check the frame fork handlebars and stem for cracks and damage Lubricate handlebar stem and seatpost Check each pedal to make sure they are not loose and lubricate Make sure there is no rust or kinks in the control cables or cable housing Check your wheel rims for excessive wear and dents and for loose or damaged spokes Check your tires for tire inflation and excessive...

Page 10: ...the serial number in the owner s manual and store in a safe place Section 4 Assembly Instructions This manual provides instructions on how to assemble your new Rambo Bike as it comes from the factory If you feel you do not understand the instructions have the proper tools or would prefer a qualified technician to perform the assembly take your new Rambo Bike to your local bike shop This manual may...

Page 11: ...alled into the fork drop outs Move the quick release lever to a position halfway between the OPEN and CLOSED position perpendicular to the bicycle frame Figure 3 4 Adjusting Nut Cone Spring Quick Release Lever Figure 3 1 Figure 3 2 Figure 3 3 Turn the tension adjusting nut until it can no longer be turned by hand and check to be sure the tension nut is firmly against the fork dropout as shown in F...

Page 12: ...n the frame The wheel should rotate freely without the brake rotor rubbing or binding in the caliper The tire should be set evenly between the closest points on each side of the frame Handlebar Assembly Carefully remove protective packaging Inspect cables levers electronics if equipped and shifters for damage Remove factory installed front plate on the steering stem as show in Figure 4 1 Place han...

Page 13: ...rious injury or death it down to the desired height ensuring the minimum insertion mark cannot be seen as shown in Figure 5 3 Check that the saddle is aligned with frame and set at the correct angle To align the saddle stand over the bike and align the nose of the saddle to run parallel with the top tube of the frame Once the saddle is correctly aligned tighten the adjusting nut and then closed th...

Page 14: ...hreads on the pedal spindle Doing this will cause costly damage And may result in a dangerously loose pedal Figure 6 1 Your bike may be fitted with an electric mo tor and lithium ion battery To Install the battery follow steps below and see figure 7 Find the battery keep er bracket located on the main frame bottom tube The battery and battery keeper bracket are designed with coupling slots in each...

Page 15: ...ng for the removed battery Charging for the battery which at tached on bike Custom Rambo Bike accessories also available Check them out online at www rambobikes com R160 Camo Accessorry Bag For use with all Rambo bikes R150 Extra Large Luggage Rack For use with all Rambo bikes R180 Aluminum Bike Hand Cart For use with all Rambo bikes ...

Page 16: ...Nm 55 in lb TORQUE TO 9 10 Nm 80 90 in lb Loosen before mounting TORQUE TO 5 7 Nm 40 60 in lb Loosen before mounting Be careful not to advance the torque arm as you pull the cable Tighten cable anchor bolt to the specified torque Use the barrel adjuster at the brake lever to remove any remaining cable slack if there is any Figure 5 ALIGN THE CALIPER A Use your fingers or a wrench to turn the inboa...

Page 17: ...Under normal use it is not necessary to clean the caliper rotor or pads If necessary use only water and dish detergent to wash the caliper and rotor being sure to thoroughly rinse all soap residue from the rotor Dry with a clean paper towel SPRING TENSION ADJUSTMENT If necessary spring tension can be adjusted by turning the spring tension adjustment screw with a 2 5mm hex wrench Turning the screw ...

Page 18: ...cable enters the derailleur seen in the lower center part of the picture below First position yourself at the rear of your bike so you can see how well the rear derail leur is lining up with your cogs Second tweak the derailleur s cable tension by slowly twisting the barrel adjuster clockwise for problems shifting into a higher gear or counter clockwise for problems shifting into a lower gear Fina...

Page 19: ...sist Long press to start assist walking highlights on scree Vehicle goes at 6km h Only in case of pushing can this function be used Please don t abuse when riding Backlight Long press to switch on backlight on scree and front light on as well if front light available Long press again to switch it off Note Automatical backlight is available if controller gets this function Backlight front light on ...

Page 20: ...8 Press M to save and skip to time setting Time Press or to change the hour then press M to minute setting press or to change the minute Press M to save and exit Setting effects after restart Advanced setting Long press M to start display Long pree press and to setting mode then press and and no release meanwhile press M eight times to advanced setting Wheel size setting Press or to change the whe...

Page 21: ... Attached list Error code Definition 04 Throttle no homing 05 Throttle abnormality 06 Low voltage protection 07 Over voltage protection 08 Hall sensor abnormality 09 Phase line abnormality 10 Controller overheat 11 Temperature sensor in controller abnormality 12 Current sensor abnormality 21 Speed sensor abnormality 22 Communication abnormality in BMS ...

Page 22: ...le or transferable No Other Warranties EXCEPT AS PROVIDED IN THIS LIMITED WARRANTY SET FORTH IN THE WARRANTY CARD SUPPLIED WITH Rambo Bikes AND INSTRUCTION SHEETS ARE PROVIDED AS IS ALL OTHER WARRANTIES AND REPRESENTATIONS ORAL OR WRITTEN EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILI TY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXCLUDED AND DO NOT APPLY TH...

Page 23: ......

Page 24: ... s Name ______________________________ Street Address __________________________________________________________________________ City __________ State __________ Zip Code _____________ E mail Address ____________________ Phone _______________ Date Purchased ____________________ Purchased From Dealer Name ____________________________________________________________ How did you hear about us ____ Ca...

Page 25: ...WWW RAMBOBIKES COM 14645 Felton Court Suite 103 APPLE VALLEY MN 55124 Tel 952 283 0777 Fax 952 236 6458 ...

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