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Summary of Contents for Eightpins NGS1
- Page 1 EIGHTPINS Installation Guide and Manual Eightpins NGS1 – Integrated Variable Seatpost Setback + miniSetback V1.1, NGS1 EN 21.06.18...
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Page 2: Table Of Contents
Inhalt General Warranty Policy Service Safety instructions Usage as intended Assembly and service Modifications Compatibilities Seatpost travel and insert lengths (do not mix up!) Weight limit Before the assembly Manual Using the seatpost Aligning the seatpost / Operating the overload clutch Seat height adjustment top position Adjustment of the saddle angle Before every single ride... - Page 3 Eightpins seatpost tube Eightpins capsule Bushing tube Outer sleeve Teflon ring Felt strip Wiper Plastic fixing screw Spacer 36mm Spacer 24mm Spacer 12mm Spacer 6mm Lubrication port screw Flex aluminium cable housing Remote Clamping nut Cable adjuster End cap small...
- Page 4 Eightpins seatpost tube Eightpins capsule Bushing tube Outer sleeve Teflon ring Felt strip Wiper Plastic fixing screw Spacer 36mm Spacer 24mm Spacer 12mm Spacer 6mm Lubrication port screw Flex aluminium cable housing Remote Clamping nut Cable adjuster End cap small...
- Page 5 A Eightpins seatpost tube Height adjuster B Compensation clip M Seatclamp top C Postpin mounting unit N Seatclamp bottom D Adjusting clamp O rear clamping screw E Piston rod P Clamping nut F Release slider Q Rotation clutch G Guiding insert...
- Page 6 A Eightpins seattube Height adjuster B Compensationclip M Seatclamp top C Postpin mounting unit N Seatclamp bottom D Adjustingclamp O Rear clamping screw E Piston rod P Clamping nut F Release Slider Q Rotation clutch G Guiding inserts R Eightpins capsule...
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Page 7: Warranty Policy
Service As to the service, a major advantage of the Eightpins variable seatpost is that the main tube can be dismounted very easily and that the anti-friction bushing can be cleaned and/ or exchanged quickly. In case you notice a higher friction in the system, it can be greased via a grease hole in the outer label casing. -
Page 8: Assembly And Service
Postpin interface. One can not retrofi t this interface to a bicycle frame. Refer to your local bike shop in case you are in doubt. Attention: Eightpins decisively advices its customers not to modify a frame in any way, as this can weaken the frame, cause crashes and lead to severe injuries including death. -
Page 9: Weight Limit
Weight limit The integratet Eightpins Seatpost is subjected to a weight limit. Setback Seatpost max. rider weight 130Kg MiniSetback Seatpost max. rider weight 110 Kg Before the assembly The Postpin interface of the frame features a screw on the right-hand side. This screw is meant to adjust the vertical alignment of the seatpost, orthogonal to the direction of riding. It has been tuned and secured with screw lock already. Your frame is to come with a Postpin through axle as standard. -
Page 10: Manual
Manual Using the seatpost In order to lower the seatpost, push the remote lever at the handlebar and push down the seatpost. In order to keep the new saddle position, release the remote lever. Extending the seatpost again, you need to push the remote lever and without counterforce let it fi nd its original height. The Eightpins variable seatpost works fully mechanically and features click notches every 6 mm. Attention: The remote lever must not be pushed if the bike hangs on the saddle. Aligning the seatpost / Operating the overload clutch The Eightpins seatpost features an overload rotation clutch. This allows for the seatpost to turn away in case of a crash and thus prevents both the saddle and the seatpost from damages. If this has happened, the saddle can simply be brought back into place by turning it. If the breakaway force is too low, it can be increased (refer to the chapter... -
Page 11: Assembly Instruction
Assembly instruction Preparation of the seat tube of your frame (Drilling a hole for the fi xation screw) 1 + 2 Insert the bushing tube into the outer tube upside-down. 3 Put the outer tube including the bushing tube onto the seat tube. 4 The outer tube is to be pushed inwards until the bushing tube sits tightly. 5 Make sure the hole for the greasing points towards the front of the bike and that the hole for the fi xation points towards the left-hand back with a 45° angle. All this is necessary in order to have the outer tube in the right position afterwards and that the hole for the outer label casing is congruent with the drilled hole in the frame. pic. 1 pic. 2 pic. 3 pic. 4 Note: Attention! The exact align- Slipping the outer label casing... -
Page 12: Cable Routing
pic. 5 pic. 6 pic. 7 pic. 8 9 Insert the seatpost until the compensation clip can be seen from the outside through the Postpin assembly hole. The slot needs to be right in the middle of the assembly hole. Picture 12 displays two different wrong positions. If this is the case, the seatpost can be taken out of the seat tube again in order to align the clip towards the front or back. Simply do this with your thumb; you will notice a slight resistance. Repeat steps 5 – 8 thereafter.. pic. 9 pic. 10 pic. 11 pic. 12 Cable routing Before installing the cable, remove the seatpost and the bushing tube. -
Page 13: Assembly Of The Bushing Tube And The Outer Label Casing
Assembly of the bushing tube and the outer label casing 1 Grease the bushing tube from the outside. 2 Insert the bushing tube (with the flange pointing upwards the bike) into the frame. Make sure the cable housing does not damage the bushing tube. Remove unnecessary grease. 3 If necessary, pull the cable housing out of the frame again.. pic. 1 pic. -
Page 14: Assembly Of The Remote Lever
9 pic. 10 pic. 11 Assembly of the remote lever The cable system of the Eightpins seatpost consists of a common cable housing with a Steel core and a short, more fl exible cable housing with an Aluminum core directly at the remote lever. 1 The cable system right at the remote lever consists of a 10 cm Aluminum cable housing, a specifi c cable tension ad- jusetr and a specifi c end cap for the remote lever featuring a reduced outer diameter. The specifi c end cap is installed at the one end of the cable housing, the cable tension adjuster at the other end. The cable tension adjuster is installed so that the side with the 4 mm label is connected with the Aluminum cable housing. - Page 15 3 Before the cable is attached to it, pull it fi rmly until the click mechanics is fully open. You can hear a slight click from the inside of the seat tube. When releasing again, you will hear another click. This process is important to confi rm that all components of the cable system sit tightly. 4 If the cable housing can be pushed into the frame in any way during the check, it has been detached from the cable housing counterpart at the Postpin mounting unit. Take out the seatpost and start again at step 4 “Assembly of the seatpost” on page 13 5 Pull the cable clamp of the remote lever over the cable and guide it all the way to the cable housing. 6 + 7 Very slightly tighten its screw with a 3 mm Allen key on both sides so it can still. be moved. Position it about 2 mm away from the cable housing. pic. 3 pic. 4 pic. 5 pic. 6 9 Cut the cable directly at the cable clamp. Pull it away from the cable housing a little bit in order to have the end of the cable itself disappear within it. 10 + 11 The distance between cable clamp and cable housing should still not exceed 3 mm. 12 Tighten the two screws of the cable clamp simultaneously with a torque wrench with 5 Nm.. Attention! In order to avoid injuries, the cable needs to be pulled into the cable clamp hiding any type of cable bits sticking out of it.
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Page 16: Installation Of The Mini Setback Saddle
pic. 17 pic. 18 pic. 19 pic. 20 Installation of the mini setback saddle 1 + 2 Loosen and hang out the rear screw of the saddle clamp. 3 As soon the screws are loose enough remove the seatclamp top. 4 Insert the top saddle plate and position it over the saddle rails. 5 Hang in the front screw in the holder of the seatpost tube head. 6 Have the saddle lay on the sockets for the saddle rails and insert the back screw for the saddle fixation again. 7 Adjust the saddle angle with the front screw. Turning it clockwise, the tip of the saddle moves downwards; turning it anticlockwise, the tip of the saddle moves upwards. 8 With an 8 mm bit and a torque wrench, tighten the rear screw with 8 Nm. ATTENTION: 9. The nuts which are installed in the top seatclamp have two small flat areas which have to be aligned in the long hole parallel to the riding direction. Note: Altering the saddle angle, you always need to loosen the rear screw first. -
Page 17: Explanation For The Adjustment Of The Seat Height
8 Adjusting the seat height Explanation for the adjustment of the seat height: In order to have the seat height in the position wanted when the seat post is fully extended, it has to be adjusted correctly. As the design does no longer include a quick release, the procedure is somewhat different from common systems. The Eightpins variable seatpost includes a high-pressure gas spring, which generates the force to push the seatpost upwards. This force is transferred via a piston rod and a connection element (seat height adjustment clamp) to the actual seatpost tube. The seat height adjustment clamp – turning it clockwise – can be connected to the seat- post at different height positions. Depending on the position chosen, the seatpost will always extend again to it, after it had been lowered. The seat height adjustment clamp can be operated or turned from the outside via the seat post height adjuster (Picture 1 and 2) that can be found inside the top of the seatpost. For this, one does not need anything but a 2.5 mm Allen key, with which you may turn the seat height adjuster in a 45° angle to open or close it. 3 When the... - Page 18 The seat height has been adjusted. The concept of shortening the seatpost tube With the goal to have the maximum travel of your Eightpins variable seatpost for your individual seat height, the seat- post needs to be shortened. If the seatpost is too long, it will not have enough space inside the frame for the full travel when lowered. Before shortening the seatpost, the ideal seat height is to be evaluated. The reference point for the following measurement is the top end of the wiper. After the shortening, the seatpost still needs to be long enough to...
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Page 19: Stencil For Shortening The Seatpost
Stencil for shortening the seatpost The seatpost comes with a stencil for shortening it correctly. The sizes XS to XL refer to the different frame sizes. The reference point for the measurement and therefore the point to attach the stencil to is the top end of the wiper. After the adjustment, mark the position with some tape, remove the seatpost and position the stencil at the bottom line of the tape – downwards. The stencil displays a green and a red scale in every column, depending on the frame size. If the tube is cut in the green area, the full travel of the seatpost will be available. If it is cut in the red area, the travel needs to be reduced with travel reduction spacers in order to avoid a collision of the seat tube with the Postpin fi xation inside the frame (picture 1). If the travel shall be reduced, refer to the red area. If the tube reaches into a new box on the scale only slightly, refer to this box and mount reduction spacers respectively. For further information, also read the chapter “Reduction the travel of the seatpost”. pic. 3 Highly recommended: 3. Cutting the tube in the middle of the green area (as marked with the scissor symbol). In this case, the seat height can still be altered afterwards while still offering the full travel. Not recommended: 4. -
Page 20: Shortening The Seatpost Tube
Shortening the seatpost tube After you have found the correct seat height, the seatpost tube needs to be cut. 1 + 2 Mark the seat height position with some tape directly above the wiper. Dismount the seatpost afterwards. 3 + 4 Turn the seat height adjustment counterclockwise with a 2.5 mm Allen key as a lever for 45°. 5 + 6 Push the remote lever and simultaneously pull the seatpost out of the frame. Find the right spot to cut the seat- post with the help of the stencil. -
Page 21: Reduction Of The Travel
15 At the outside, this works best with a tube deburrer. 17 The inside of the frame also needs to be worked on with a hand deburrer. 18 Clean the tube with compressed air. 19. After having cleaned the tube, grease the lateral guide sockets with the oil the seatpost came with. Just use a few drops of oil. Attention: before reinserting the seatpost tube, the inside of it needs to be cleaned in order to avoid damages at the mechanics as a result of dirt or swarf! pic. 15 pic. 16 pic. - Page 22 no travel reduction no travel reduction keine Hub reduzierung keine Hub reduzierung travel reduction 66mm travel reduction 66mm Hub reduzierung um 66mm Hub reduzierung um 66mm pic. 3 pic. 2 pic. 4 4 Open the seat height adjustment clamp with a 2.5 mm Allen key and a 45° clockwise 45°. 5 + 6 Push the remote lever and simultaneously push the seatpost tube out of the frame. 7 Attach the stencil to the lower end of the tape or at the top end of the wiper, in case the seatpost is still mounted.
- Page 23 stop nut 24, 32mm) profile ring pic. 15 pic. 16 pic. 17 pic. 14 pic. 18 16 Install the stop nut again and tighten it. 17 Loosen the seat height adjustment clamp again with a 3 mm Allen key. 18 Push it upwards until all spacers sit fi rmly. 19 Tighten the 3 mm screw with 2.5 Nm while simultaneously pushing the seat height adjustment clamp upwards to have the spacers sit fi rmly. 20 + 21 Before the assembly, reaffi rm that the seat height adjustment clamp is on the open position. 22 + 23 Install the seatpost tube. 24 Insert the seat height adjustment clamp into the tube again.
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Page 24: Greasing The Bushing Tube With Oil
pic. 31 pic. 32 pic. 33 pic. 34 Greasing the bushing tube with Oil Before the seatpost can be used, it needs to be greased. 1.+2. Remove the Torx screw at the front end of the outer sleeve with a T8 Torx screwdriver. 3. Push the tip of the oil bottle into the hole and press ooil into the sleeve until the resistanve increases. 8 + 9 Reinstall the Torx screw again and tighten it. -
Page 25: Service
Service Dismounting the capsule 1 + 2 With a 2.5 mm Allen key, turn the seat height adjustment clamp counterclockwise for 45°. 3 – 6 Push the remote lever and simultaneously pull the seatpost out of the frame until the seat height adjustment element reaches out of the tube. 7 – 10 Push the remote lever, unhinge the cable clamp and remove the cable housing from its socket. 11 + 12 Unscrew the Postpin through axle with a 5 mm Allen key. -
Page 26: Cleaning And Greasing The Bushing Tubes
18 Hold the plastic slide valve in this position with your thumb. 19 + 20 Carefully unhinge the cable by guiding it upwards. 21 + 22 Remove the cable housing from its counterpart. 23 The capsule has now been removed entirely and is ready for the service. pic. 21 pic. 22 pic. 23 Cleaning and greasing the bushing tubes 1 + 2 With a 5 mm Allen key, unscrew the black plastic screw from the outer label casing. 3 + 4 Carefully remove the outer label casing.. Note: The bushing tube is very fragile and can become distorted as a result of its design.. 5 + 6 Remove the bushing tube from the frame. -
Page 27: Replacing The Cable
Replacing the cable 1 + 2 Cut the cable directly at the cable clamp. 3 + 4 Remove the old cable. 5 – 7 Insert a new Eighpins or Campagnolo (Campagnolo shift cable) from the back to the front. 8 + 9 Push the black slide valve downwards with your thumbs. 10 + 11 Hold the slide valve in the bottom position and remove the cable head. 12 Release the slide valve again. 13 + 14 The cable is to be put into place laying correctly in the guidance socket and neither to its left nor right.. Attention: Make sure the cable lays in the middle of the brass guide and neither left nor right of it. - Page 28 20 + 21 Install the Postpin through axle, but do not tighten it yet. pic. 17 pic. 18 pic. 19 pic. 20 pic. 21 The cable system of the Eightpins seatpost consists of a common cable housing with a Steel core and a short, more fl exible cable housing with an Aluminum core directly at the remote lever. 22 The cable system right at the remote lever consists of a 10 cm Aluminum cablehousing, a specifi c cable adjuster and a specifi c end cap for the remote lever featuring a reduced outer diameter. The specifi c end cap is installed at the one end of the cable housing, the cable tension adjuster at the other end. The cable tension adjuster is installed so that the side with the 4 mm label is connected with the Aluminum cable housing. The second end is attached to the steel cable housing that sticks out of the frame.
- Page 29 pic. 25 pic. 26 pic. 27 pic. 28 29 Pull it away from the cable housing a little bit in order to have the end of the cable itself disappear within it. 30 With a 3 mm Allen key and a torque wrench with a 3 mm Allen key bit, tighten the two screws with 5 Nm. Attention! In order to avoid injuries, the cable needs to be pulled into the cable clamp hiding any type of cable bits sticking out of it. pic. 29 pic. 30 pic.
- Page 30 Altering the air pressure 1 Remember or mark the position of the compensation clip. 2 + 3 Pull the compensation clip off the mounting element. 4 You will find a valve cap inside the fixation element. 4 – 7 Unscrew the valve cap with a 3 mm Allen key. pic. 1 pic. 2 pic. 3 pic. 4 pic. 5 pic. 6 pic. 7 pic.
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Page 31: Adjusting The Breakaway Torque Of The Overload Clutch
5 Advice: fi xate the open-end spanner in a vise. 5 With a long 6 mm Allen key and a torque wrench, tighten the clutch. If there is a maximum torque indicated on the capsule, it must not be exceeded. Eightpins recommends a maximum torque of 12 Nm. The maximum torque must not be higher than 14 Nm. Attention: A torque value higher than 14 Nm might damage the seatpost. If the breakaway tor- que is too high, the saddle can not turn away in case of a crash which would result in the seat- post to be damaged. -
Page 32: Installation Of The Seatpost
pic. 13 Installation of the seatpost Install the cable 1 + 2 Attach the cable housing to its counterpart at the bottom end of the Postpin mounting unit. 3 + 4 Push the black slide valve downwards with your thumbs. 3 Hold the slide valve in the bottom position and install the cable head. - Page 33 Installation of the seatpost tube: 18 + 19 Make sure the seat height adjustment clamp is open before the installation. The black part needs to be turned towards the silver one in a 45° angle. 20 + 21 The seatpost tube is installed by fi rst inserting the seat height adjustment clamp. 22 + 23 Mind the black guide sockets sitting in the lengthwise guide sockets of the seat height adjustment clamp. 24 + 25 Carefully push the seatpost tube downwards. Attention: do not bend the piston rod pushing the seatpost, as it can be damaged. 26 Insert the seatpost in the wiper making sure the sealing lip is not forced inside the tube. Guide the seatpost all the way to the bottom.
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