Rans Crank Forward Manuel utilisateur
OWNERS MANUAL for Crank Forward & Recumbent Bikes
YOUR RESPONSIBILITIES
A lot of these items are common sense, and it may seem silly to include them in this booklet. In spite of this, when accidents occur, usually one or
more of these items were ignored. A little review of the basics can’t hurt.
You must have the skill to operate the bicycle safely before riding in traffic. Every bike has different handling characteristics. Take the time to learn
the behavior of your bike. If you are riding a tandem or short-wheelbase bike, remember there is wheel- overlap which means that your front wheel
can strike your foot if you turn sharply. Practice in unobstructed open areas before riding on public roads.
Always wear a bike helmet and use a rear-view mirror.
Check the operation of brakes and steering before each ride, along with tire pressures. Make sure all the clamps on the handlebar and risers are
snug. Inspect tires for cuts, bulges or excessive wear.
Maintain your bike. Don’t unnecessarily expose it to the elements. Watch for corrosion. Promptly touch up any areas of paint damage.
Do not overload the bicycle. RANS bikes are designed for loads up to 250 or 275 Ibs. (Check our web site for weight limit specific to model.) Car-
go may affect the handling of your bike. Be especially careful of any cargo or apparel that could interfere with the braking or steering mechanisms
or contact the wheels of the bike when in motion.
Aftermarket items such as fairings, tailboxes, body socks, pedals incorporating clip-in devices, assisted drive systems, and other items not specif-
ically engineered for your bike may adversely affect handling and safety, and are the sole responsibility of the rider as to their suitability for use on
a RANS bike.
Ride under control. This goes double for tandems. Avoid excessive speed going down hills. Ride slowly on damp surfaces. Remember, you will
need extra stopping distance when wheel rims and tires are wet. Be aware of drain grates, gravel or sand, uneven pavement, wet leaves and
debris. If your bike suddenly begins to handle differently, stop immediately and inspect for problems.
Be sure your reflectors are correctly installed and not damaged or missing. Do not allow your reflectors to be obscured by gear or cargo. Keep
your reflectors clean. Reflectors are not sufficient for night visibility. Use powered front and rear lighting for maximum safety.
CRANK FORWARD BICYCLES
PROFESSIONAL ASSEMBLY OF YOUR RANS BIKE IS REQUIRED BEFORE RIDING!
Check security of the wheels, handlebars, brake levers, shifters, grips, and
seat prior to riding. Adjustment of the gearing and brakes may be required.
Seek the help of your dealer, local bike shop, or qualified bike mechanic
for best results.
Check tire pressure and inflate as required. Pressure limits are printed on
the sidewalls of the tires. Always ride on tires inflated within the range of
the recommended values.
Three main adjustments come into play in order to fine tune the bike to a specific rider. The one size fits all design is
accomplished by the laid back angle of the seat tube. As the seat raises or lowers the distance to the handlebar and
pedals change. Most riders will fit with simple adjusting of seat height and tilt. Handlebar height, or rotation adjustments
can be made to suit individual taste and some may require a deeper bar for greater reach back. Other bar choices are
available, consult our web site at www.ransbikes.com for detailed information on handlebar options.
Rider weight limit is specified on your bike, this decal is usually on the seat tube. Use of the bike with loads greater than
specified voids the warranty. Ramping and jumping the bike also voids the warranty.
FITTING THE BIKE TO THE RIDER
GENERAL
Begin by setting the seat with the front tilted down slightly. This adjustment is
made using the QR on the underside of the seat. Step over the bike, hold the bars
and check for proper leg extension. Proper seat height occurs when the leg is
straight when the heel of your foot (with the intended riding shoes) is on the pedal.
Place the toe on the pedal and there should be slight bend at the knee.
Seat tilt will affect seat height. The more nose down tilt rotates the body slightly
down and forward requiring a slight raise to seat height. Less tilt raises and
pushes back the body; meaning seat height may need to be reduced.
These settings are not critical, riding a bit and experimenting with tilt and
height is recommended. The increase in comfort will be noticed once you have
achieved the right setting. Note: seat tilt is usually at the right angle when it feels
like you are almost sliding out of the seat. A foot on the pedal will secure you
in the seat. This effect will be a little less on the Cruz and Fusion due the more
laid back seat angle. Too little tilt may result in the front edge of the seat applying
pressure against the thighs and chafing, and less circulation can result. Tilt the
seat until no pressure is felt.
We also provided numbers etched on the seat post that correspond with
your pant inseam. This usually places the seat very close to the correct
height. Use this gauge as a starting point ride to fine tune. Also knowing
your “seat setting number” allows you to check for slippage and if
removing the seat, restore it to your setting. The inseam scale will vary depend-
ing on size. Refer to the diagram for adjustment in scale readings.
Adjusting seat tilt is as easy as flipping the
Quick Release to position and lock.
Use the “inseam” scale to position seat at
correct height. Your pant inseam corresponds
to this number etched on seat post.
1. Elbows are slightly bent.
2. Wrist are not held at an odd angle producing pressure.
3. The bars are just above the knees or higher.
4. Check the security of clamps after adjusting handlebar.
Adjust seat height so leg is straight when
heel of the foot is on crank at most extended
point.
Note, be sure hips are level.
Do not attempt riding with loose handlebars! Injury may result.
Handlebar height should be set to just above the knees. This general setting can
be modified after test rides. Rotating the handlebar will also change wrist and palm
comfort and the feel and reach. The best bar position occurs when:
Adjusting seat tilt is as easy as flipping the Quick Release to position and lock.
Use the “inseam” scale to position seat at correct height. Your pant inseam
corresponds to this number etched on seat post.
HOW TO READ INSEAM GAUGE
SEQUOIA - SUBTRACT 3”
STANDARD - SET ON YOUR INSEAM
SMALL - ADD 2”
SEQUOIA
STANDARD
SMALL
3”
2”
AFTER RIDING AWHILE...
Too much Palm Pressure: This is caused by several factors, rough roads, overreaching to the bars, or bars too
low. To correct for the rough road, try taking bumps at lower speeds or wearing padded gloves. Correct overreaching
first. Check seat location, too high will cause you to lean down to the bars more. As the bars are raised they come aft
a slight amount helping with the reach. Deeper bars or bars that extend further aft are available from your dealer and
our online store.
Back Muscle Fatigue: This is a sign of overreaching or pulling too much on the bars (before being in shape). Try
rotating the bars to locate them more aft, or try a deeper set of bars. A little more tilt will shorten the distance to the
bars. If everything is adjusted correctly keep riding. As your muscles strengthen the fatigue will go away.
Some fine-tuning tips to enhance performance and enjoyment…
Numb Seat: Time in the saddle is what will cause the circulation to restrict, and numbness to set in. Standing up on
the pedals for a few seconds will help. If this becomes a chronic problem, try putting a layer of open cell foam stuffed
between the stock cushion and seat. Adjustment of seat height and tilt may be required. You can buy open cell foam
for cushions at most craft stores.
Stand Up Riding: The Fusion and Cruz are not intended for riding while standing on the pedals. Coasting yes. but
since the bars will be too close to your knees when off the saddle, this will conflict with pedaling. The Dynamik, Zenetik,
and Alterra’s however can be ridden while off the seat. Some may require handlebar adjustment or changing the bar,
depending on your build. While stand pedaling is possible on these two bikes, it is still different from a standard D/F
and will require some adapting. Learning to ride this way is a great asset on the more aggressive trails, where the
Dynamik and Alterra seems to be eager to go.
Handling Characteristics: Long wheelbase has advantages on loose surfaces- it is easy to maintain control. You
will find it easy to maintain control on loose sand and other surfaces not so ideal for skinny high-pressure tires. You
will also find going a little slower on such roads is a good idea, especially if you are riding skinny high pressure tires.
The fatter tires will be at home on such roads, and it opens up a great experience to be able to cruise the back-roads
on a bike that is comfortable.
The laid back seat angle places less weight on the front wheel, there can be some tendency for front wheel sliding when
tight cornering too fast on a loose surface. Shifting body weight and controlling speed will enhance your ability to corner.
Again tire size, tread type, and pressure will affect this greatly. Otherwise the bikes handle very naturally, there is no
learning curve, simply get on and ride (provided you are currently able to ride a bike!) However learning and understanding the
special nature of this design will enhance your utilization and enjoyment. The more you ride the more you will enjoy.
The CF-1 & CF-2 Seat: The CF-1 and CF-2 seats are wonderful for comfort, and have the added advantage of
springboard affect, especially when more to the front of the seat. This is a great idea if the road is extra bumpy, just
slide an inch or two forward and you will notice the shock absorbing nature.
Special Consideration for Trail Riding the Dynamik: The lighter front loading will come into play during aggres-
sive trail rides, but with a little practice it will become second nature to compensate, and in some cases an advantage,
such as popping the front wheel over small obstacles. Crank clearance can be less than typical MTB’s so watch out for
crank strikes! Bunny hops are no problem once you learn to push down a bit, or stiffen your arms, since the nose of
the bike will pop up easily. As you ride you will notice the same body English works here as on typical bikes, but slightly
different portions. It only takes a few rides though to start nailing the trail. You will get used the low seat height, the few
inches difference really feels big! The bike seems to hug the ground compared to a MTB. Definitely nice when ducking
under tree limbs! The low top tube height is nice also; it helps avoid painful groin jams when an errant dismount occurs.
Plus the low top tube height is great when you have encountered a hill that wins, you can simply stay on the bike and
walk it up.
Using Shock Forks: Most MTB shock forks will adapt. The rake needs
to be at least 38mm. Stroke can be your personal preference but 56 to
76mm is plenty. Much over 76mm will, however start lifting the head angle
and change the bikes handling.
Front Tire Clearance: If trying out larger tires than spec, foot to tire
clearance may become close or contact possible. Check this prior to riding.
Caution: Changing tire sizes can affect toe
clearance with the front wheel.
Since you will tend to pull harder on the bars on this bike than perhaps the norm, inspect the stem and bar clamps for security.
CARE...
General: The conventional aspects of the Crank Forward line can be maintained, as any bike should. The bike differs
in the seat, seat post, and seat attach brackets. About the only care needed for these special parts is to spray a dry
wax lube onto the seat post shaft and inside the seat tube on the frame. This will prevent corrosion from binding the
seat post. Keep the seat components clean to avoid extra wear at adjust points, and wash the seat cover/cushion in
the kitchen sink using dish soap. The seat cover may even survive most gentle cycles in the clothes washer, but no
guarantees if you try this.
Headset Adjustment: The headset is adjusted to be play free by using the headset adjustor. It is a bit of a
trick to get all the play out, but simple:
PARTS LAYOUT TOP TO BOTTOM
1. Riser clamp
2. Headset adjuster nut
3. Headset adjuster barrel
4. Headset adjuster clamp
Note: Riser clamp and Headset adjuster clamp are identical in function, but are
given dierent names for the purpose of clarity in these instructions.
Ce manuel convient aux modèles suivants
8
Table des matières
Autres manuels Rans Vélo
