HIBOX C2 INSTALLATION MANUAL

 

HIBOX C2 PART LIST

 

 

 

 

ITEM	NAME	QTY
1	Housing	1
2	Ring Gear	1
3	Glide element	2
4	Adjustment screw	2
5	Spring	2
6	Lid	1
7	M5 nut	2
8	Housing screw	3
9	Brass ring	2
10	Set Screw	2
11	Flathead Lid Screw	3
12	Grease	1

 

 

Hibox C2 is our second generation of a compact shifting system designed to enhance the functionality of Pinion C-line gearboxes, especially for riders using brake and shift levers on race handlebars or trigger shifters on MTB handlebars. It replaces the standard twist shifter, offering a clean and ergonomic solution for a more streamlined cockpit.

 

 

Hibox C2 is only compatible with Pinion C-line gearboxes. Shimano:

For Shimano shifters the Gebla Shimkit A22/A21 must be used. With this modification it is possible to use the: GRX820, GRX810, GRX600, GRX400, DuraAce 9020, Ultegra 8020,

105 ST-R7020, 105 ST-R7025

 

Sram:

Hibox is compatible with all mechanical shifters from Sram

 

 

• 2 mm and 2.5 mm Hex key

• 0.5 x 3 mm Flathead screwdriver

• Knipex 70/110 side cutters

   

  INSTALATION

 

 

 

• Use a screwdriver to gently pry open the lid. Be careful not to cause any damage

   

   

   

   

  2) REMOVAL OF THE OLD CONTROL UNIT:

 

• Loosen the three screws using a 2.5mm hex key (2.5mm Allen wrench). Carefully remove the old control unit.

   

   

   

   

   

   

   

  3) SPREAD THE GREASE AND ATTACH THE HOUSING:

 

• Use a small brush or your finger to evenly spread the grease from the pinion across the gearbox. Ensure all moving parts are well-coated for smooth operation.

• Loosely secure the housing (1) to the pinion gearbox using the housing screws (8). Once aligned, tighten the housing screws by hand until secure.

   

   

   

   

   

   

   

  4) GREASE

 

• Apply a thin layer of grease to the gears and the inner surfaces of the housing. Avoid excessive grease, as it may cause the glide element to become stuck.

   

   

   

   

   

   

   

   

   

  5) INSERT THE RING GEAR:

 

• Carefully place the ring gear into the planet gears of the pinion gearbox.

• If the ring gear does not slide into place, gently rotate and adjust the planet gears to align them properly.

   

   

   

   

  6) PREPARE SLIDING ELEMENT

 

• Partially screw the set screw into the sliding element, just enough for it to stay in place without falling out

• Ensure the set screws are positioned on opposite sides for the upper and lower set screws.

• Insert the sliding element into the housing as shown in the picture.

   

   

   

   

   

   

   

  7) INSERT ADJUSTMENT SCREWS

 

• Insert the adjustment screws

• Thread the adjustment screw all the way into the Hibox with the M5 nut on the adjustment screw

 

 

 

 

 

• pull the left shifter cable through the upper adjustment screw

• Pull the right shifter cable through the lower adjustment screw

• Be careful that the cable is in the correct position at the shift lever

   

  Important

  • The upper cable will shift to a lower gear (for uphill)

  • The bottem cable will shift to a faster gear (for downhill) The most commen is using the left shifter for shifting to a lower gear and the right shifter for shifting to a faster gear. However this can be changed for personal preference.

 

 

 

 

 

 

 

 

 

 

 

 

• Slide the parts in the following order:

  • Brass ring

  • Spring

  • Glide element

     

     

     

     

     

     

     

     

     

    10) PULL SPRING TENSION AND TIGHTEN SET SCREW

 

• Insert the glide element back into its position in the housing.

• Pull the cable to tension the spring, until the spring has a slight curve and fits nicely in the housing. Then tighten the set screw.

  • the back of the glide element must keep contact with the housing

  • avoid any excessive bends in the spring, then it is not tight enough

     

     

     

     

     

     

     

     

     

    11) CUT THE CABLE

 

• Cut the cable as close the glide element as possible, you can have a small bit of cable extending out of the back of the glide element

   

   

   

   

   

   

   

   

   

  12) ADJUSTMENT

 

the glide element will slide out, so make sure to put your finger on the glide element so it does not slip out

 

• Try to shift both up and down.

• Use the adjustment screws to bring the teeth of the ring gear and the glide element as close together as possible without touching (Like in the image below). You do this by screwing the adjustment screw counterclockwise. You will see the teeth of the glide element will move closer to the ring gear.

• After the adjustment and a test shift. Tighten the M5 nut against the housing to lock the position.

 

Good spacing between ring gear and glide element teeth: