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ONOFF handlebars, both in alloy and carbon versions, have no maximum user weight. In spite of this, for the HELIUM range handlebars, it is recommended not to exceed 110kg in order not to reduce their life cycle. It is important to remember that although the handlebars are not restricted by the user’s weight, they are by the kind of use, as stated on the ASTM regulations.

The setup of bicycle handlebars is an easy procedure, although we recommend that it is made by a qualified professional. It is highly recommended to revise the following checkpoints before using ONOFF handlebars for the first time after their setup:

• Check the tightening torques recommended for the stem cap, brake and gear levers, and grips.
• Check that the handlebar ends are equidistant to the middle of the stem.
• Check that the setup angle of the handlebar is the right one for our riding position, being this a very personal decision.

In the case of alloy handlebars, these could still be used provided there is no visible damage on the surface, or any kind of warp. Generally, due to its higher elasticity ratio, alloy is not likely to be damaged due to minor falls.

In the case of carbon handlebars, it is highly recommended to replace the handlebars after a fall, even if no prior damage can be seen. Due to its nature as a compound material, inner delamination can have happened without being noticeable on the surface.

Yes, all ONOFF handlebars can be cut, always respecting the cutting area marked on each end of the handlebars, making symmetrical cuts. We recommend this operation to be made by qualified professionals.

The handlebar width needed depends highly on the discipline and especially on personal tastes. From our experience, we recommend using the trial and error method to define the width perfect for us:

• With closed eyes, take the handlebars in the position that feels most comfortable for us.  
• Open your eyes and measure the distance between your hands and the ends.
• Install open grips that allow us to install them up to the ends of the handlebars (Always put caps on the ends of the handlebars!)
• Use the bicycle and, after some adaptation time, change the position of the grips.
• Continue with this procedure until you find the right position and then cut the handlebars.

When we talk about ‘backsweep’, we make reference to the angle traced by the handlebars in a horizontal position, that is, how much backsweep the handlebars have.

The angle traced by the handlebars in its vertical projection.

It consists of the elevation of the handlebar ends in relation to its middle, measured in millimetres o inches.

When choosing an ONOFF seatpost, the main thing is to know the diameter that we need. This diameter is set by the frame, being it 27.2mm, 30.9mm o 31.6mm. Once we are sure of the diameter that we need, we must look at the offset needed, as well as the material or the features.

It is the distance that the middle of the seatpost is set back in relation to its axle. This way, we can modify the pedalling position moving our weight and angle back on the bicycle.

When installing a seatpost, we must always respect the ‘minimum insertion’, that is, the minimum length required to be inside the frame. Some frame manufacturers also define this insertion, usually by means of some inspection holes through which the seatpost must always be seen. Should it have these holes, the ‘minimum insertion’ is always the most restrictive one. In case of not respecting this measure, we run the risk of breaking our seatpost, or even the frame, and suffering an accident with serious consequences for our health or even death.

ONOFF seatposts, both in alloy and carbon versions, have no maximum user weight. In spite of this, for the HELIUM range seatposts, it is recommended not to exceed 110kg in order not to reduce their life cycle. It is important to remember that although the seatposts are not restricted by the user’s weight, they are by the kind of use, as stated on the ASTM regulations.

ONOFF stems, both in alloy and carbon versions, have no maximum user weight. In spite of this, for the HELIUM range alloy stems, it is recommended not to exceed 110kg in order not to reduce their life cycle. It is important to remember that although the stems are not restricted by the user’s weight, they are by the kind of use, as stated on the ASTM regulations.

In order for your bicycle to be compatible with our seatposts, it must meet the following requirements:

• Your frame must be compatible with a 31.6mm diameter seatpost.
• Your frame must be compatible with internal routing.
• If it is a 1x transmission bicycle, which does not have any auxiliary remotes on the left side of the handlebars (apart from the brake control), you can use the default version.
• If it is a bicycle with a front derailleur, or one that has an auxiliary remote on the left side of the handlebars (common of e-bikes or with remote levers), the universal remote will be necessary.

The ONOFF Tija Pija has been designed to need minimal maintenance, but as any mechanism with mobile parts, it requires some tasks for regular maintenance:

• Before every ride, you need to check, and clean if necessary, the shaft seal. This will help us keep the friction bar free of contamination and prevent premature wear.
• It is advisable to check and adjust the air pressure of our seatpost between 280psi and 300psi every 10h of use (only in models with 150mm and 170mm travel).
• After the first 2 hours of use, and due to the natural readjustment of the remote cables and coverage, it is advisable to tighten the cable to prevent looseness in the remote lever.
• Depending on the use, it is advisable to open, clean and oil the seatpost mobile inner parts every 6 or 12 months.
• Following these recommendations, and always depending on how the Tija Pija has been used, the hydraulic sealed cartridge can have a life cycle of up to 5 years.

This is a very personal decision, which will depend on our physiognomy, frame size and insertion capacity in our seat tube. As a reference, it is advisable to use 100mm seatpost in S size frames, 125mm in M and L size frames, and 170mm in L size frames.

Our chainguides are available for the following kinds of mountings:

• Straight to the seat tube: Mounted with a clamp to the seat tube. Compatible with 31.8mm and 34.9mm tubes. Convenient for old frames without any kind of mounting.
• Direct mount: Compatible with frames that come with a mounting plate welded to the seat tube, composed of a thread and a trail.
• ISCG05: This is the most common standard. It consists of a triple mounting system that surrounds the bottom bracket shell.

The easiest way to check it is to measure the distance between two anchor points:

• ISCG old: 47.77mm
• ISCG05: 55.92mm

Narrow wide refers to the position of the chainring teeth, which are of two different kinds of width, being wide and narrow teeth alternated. This technology helps prevent the chain from skipping from the ring.

The offset is the distance between the centre of the ring teeth and the contact position of the crankarm and the chainring. This measurement helps keep an optimal chain line, and changes depending on the rear hub width. All our rings are optimized for the 142mm hub standard.

Installing pedals is a very simple operation, for which we only have to pay attention to the following recommendations:

• To prevent the threads from oxidising, it is advisable to grease the threads with assembly oil before their installation.
• We must take into account that the right pedal is screwed clockwise, whereas the left one does so counterclockwise.
• The recommended tightening torque for our pedals is from 35Nm to 40Nm.
• It is highly recommended to check the tightening torque of the pedal pins before its first use.

Pedals, like any other mobile part, suffer wear due to the tough conditions of use for which they have been made.

Our pedals are composed of sealed mobile parts, which will be replaced when there is significant looseness. It is also advisable to keep pedals clean and dry after use.

Grips can usually be installed in either right or left side indistinctly. In some cases, like the DESERT grip model, the position must be respected. In the cases in which the grips must be installed in a specific position, this will be reflected on the grip itself and the user guide.

Rotors, as parts subject to wear, must be replaced when:

• Their thickness is lower than 1mm. In this case, a clear notch can be seen between the braking surface and the one which is not in contact with the pads.
• The colour of the braking surface has changed, usually to brown and blue tones, due to overheating.
• The rotor has any kind of permanent warp due to overheating or a bang.
• The rotor has been contaminated by grease or oil.  

They are wear indicators. Once the brake pads are in contact with these spots, it means that it is necessary to replace the rotor.

To choose the most suitable compound for your riding, the following aspects must be taken into account:

• Sintered pads are made of a hard metallic material that provides a better resistance to extreme temperatures, but also less initial bite.
• Organic pads have an excellent initial bite and are noiseless, but on the other hand they suffer a faster wear and are less stable at high temperatures.
• Kevlar organic pads, specific for E-bikes and gravity, are the best balance between initial bite, durability and stability at high temperatures.

The main thing is to respect the break-in period, braking in a smooth and progressive way along the first kilometres.

Another important aspect is to avoid contact between the braking surface and the pads with polluting agents when being installed.

We also recommend not pulling the brake for long periods of time so as not to crystallise the compound, being preferable braking in an energetic and intermittent way.

Due to its cooling plate, the pad needs to be thinner. Once the pads have worn away, it is not necessary to acquire the whole set, only the friction piece, at a lower price.

The best way to determine the kind of headset that your bicycle requires is to consult the manufacturer’s specifications.

It is, with our T-GLOBE 44 headset, thanks to its external bottom cup.

It is, thanks to our Mercurium tapered reduced headset.