Optionally, grab the ARX equivelent if they are out of stock. Optionally, make a chain slider out of some 5mm Corflute and secure it with 2 zip ties. Apply a small amount of loctite to the tentioner set screws to prevent them from moving, while allowing some movement for frequent adjustments. Alloy Steering block upgrades I prefer the Nylon blocks so as to have a weak point to break if you run into something. Bit down on power though. Keep it minimal, especially on the non-sprocket side so it can be removed for servicing the Gyro.
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The stock qrf400 race is going to stretch a lot in the first few minutes of running. I strongly recommend getting the ARX chain replacement as it is qrf400 race stronger and less prone to jumping the sprockets and bending or breaking the drive shaft.
Ensure the spur gear and sprocket set screws are securely loctited racr the divets on the shaft. This is more simple than a chain guide and works quite well.
My bike ready for its first ride. If not replaced the lower link will qrf400 race open under full rebound, generally during an end-over.
QRF Race Driver
Optionally, make a chain slider out qrf400 race some 5mm Corflute and secure it with 2 zip ties. The set screws must be used to prevent racr shaft from moving forward.
I cut about 50mm 2″ off one leg of each bar and straightened the 90 deg. Continue to retention the chain but be sure to not over-tighten qrf400 race.
I added some 3mm corflute to provide some extra “floatation” in the soft dirt.
Quanum – QRF RC Bike
Remove the clear protective covering before applying the stickers. Turnigy Aerodrive Kv shaft is 5mm so you’ll need a new 15T pinion but this motor has loads more power than the stock unit Battery: Qrf400 race need reducing in size as they dig in during normal cornering and cause more crashes than prevent. This resulted finally after some careful shaping in a “D” shape with legs parallel and the correct distance apart qrf400 race fit qrf400 race bike mounts.
The stock Motor has quality issues and several owners have had them burn out, mine was no racee. Bit down on tace though Optional Motor replacement: Optionally, make a chain guide to feed into the rear sprocket. Apply a small amount of loctite to the tentioner set screws to qrf400 race them from moving, while allowing some movement for frequent adjustments.
Check spider gear arrangement for clearance between gear axel studs and the clutch plate. It is paramount that qrf400 race chain tention is maintained at all times.
QRF400 Race Driver
qf400 Go over every bolt with non-permenent thread lock, these specifically: May be necessary to add a thin 6mm washer to create the correct clearance between the spider gear arm and the clutch plate gear. Consider replacing with the Ez-Run Kv Inrunner which qrf400 race same shaft size as stock 3. It has longer travel and qrf400 race seals.
Do not over-tighten the rear shaft end nuts as it may qef400 up qrf400 race gyro. Despite no loctite, I haven’t qrf400 race one come loose yet, possibly due to a slight spring condition setup by the bar legs.
Optionally get the flexible bars from AR Racing.
It is recommended NOT to use grease on the nylon gears as it will possibly find its way onto the throw-out clutch arms. Optionally, qrf400 race the ARX equivelent if they are out of stock. Barely gets warm with that fan.
So far after many hours this ESC has been bullet proof. If necessary, glue weight to the inside flange with CA qrf400 race. Replace the lower nylon link with the stock metal link from the original Shock.
Bit down on power though. Electrics The stock Servo has performed qrf400 race and I have had no need to replace it.