TurboBrake HB427-H 2-Piston Brake Calliper

• TurboBrake HB427-H is eSN's contemporary 2-Piston hydraulic calliper.
• Reliable replacement for most of the common stock callipers on most makes/models of eScooters.
• H designation = hydraulic (2-Piston Standard class). This is a contemporary calliper with similar performance of other 2-piston callipers such as those from Logan, Zoom and NUTT. HB427-H is the OEM calliper factory fitted as stock calliper on most newer models of Dragon (Langfeite) including Cyclone, Predator, Hurricane, Lightning & The Beast.

• Available in Left or Right orientation. This orientation defines the location of the hydraulic line termination (banjo bolt) as you look at the outer side of calliper mounted on scooter. For example, a calliper with right orientation, sitting on top of swing arm will suit rear right hand side of scooter & front left hand side. It will also suit front right hand side if located "behind the fork". See notes for further info, as a general guide:
  • NAMI = Left.
  • Kaabo Warrior = Right with exception to the GTR which adopts Left at front.
  • Kaabo Mantis 8/10 = Left.
  • Teverun Fighter = Left.
  • Dragon Hurricane = Right orientation.
• Supplied with Long or Short hydraulic line (hose), industry standard BH59 type with TEKTRO style barb.
  • Short, for front is 1.28 meters length.
  • Long, for rear is s 2.1 meters length.

Lengths are derived from that of NAMI Logan 4-Piston (Burn-e) which is the most generous of all common 11" wheel scooters.

Hose terminates on the outside with a Banjo Bolt. The Banjo provides flexibility for routing of hydraulic line (hose) at expense of more points-of-failure. In contrast, the 4-piston HB427-4S calliper is without Banjo.

• Supplied with factory fitted Hook pad (resin semi-metal). Replacement pads are offered in choice of 4 compounds.
• Includes 7-piece kit comprising of olive (bushing), compression nut, cover (hood/boot), pair of M6 x 18mm socket head bolts with washers to secure bracket to swing arm and two o rings for the factory-fitted barb.
• Current stocks are unbranded or with ST nameplate branding for Showtime FMX High Octane Entertainment. Branding is on the outer face on the calliper housing.
• Apply coupon code TURBOBRAKE-SET at checkout for 14% discount on cart of complete set comprising two callipers and two levers.

Notes:

1. Typically paired with the TurboBrake Lever or the higher end CNC Ball Bearing Edition lever.
2. Examples of orientation adopted on popular makes/models (always check your own build):
   1. NAMI has Left orientation.
      Rear is on the left hand side above swing arm, hence Left. Front is on the right hand above swing arm on Burn-E and Klima, and on left behind the "forks" on Blast which are all Left orientation.
      
      
      Image: Ride & Glide
   2. Kaabo Wolf Warrior Series has Right orientation with exception for GTR front.
      
   3. Dragon Hurricane has Right orientation.
      Rear is on the right hand side above swing arm, hence Right. Front is on the right hand side, behind the "forks" hence right.
      
3. Consider adding a TurboBrake Brake Bleed Adaptor: This specific sized adaptor is not included in the common bleed kits. This adaptor suits all TurboBrake HB427 series brakes (including the Yellow Dragon branded callipers) and is identical to that in the Teverun bleed kit. This adaptor is long and skinny, with only a small amount of thread on the end of the adaptor forming connection with the TurboBrake lever (approx ~1mm of thread bites as the O ring compresses, apply force in turn). eSN recommends having two adaptors for full bleed top and bottom. Without these adaptors you would need resort to augmenting the common bleed kit adaptors with O rings and/or plumbers tape.
   
4. The IS Mount bracket (adaptor) mounts the calliper to the scooter. The 160mm (rotor size) is adopted using industry standard convention, however not all makes/models of eScooters adopt this convention. Often eScooters will require a different size bracket to the standard convention to seat the calliper appropriately relative to the rotor. There are two common types:
   • F-180 R-160 bracket (supplied with HB427-4S left long & right long):
     Taller bracket: 22 & 22mm offset (height).
     This bracket is adopted on NAMI Burn-e, Kaabo Wolf Warrior 11/GT Series and Factory Teverun Fighter 11 front/rear. Note some Wolf Warrior's are observed with a 19 & 19 ("no washer") bracket.
   • F-160 R-140 bracket (supplied with HB427-4S left short, right short):
     Shorter bracket: 11mm & 7mm offset (height).
     Adopted on NAMI Klima. Near identical to that of the Kaabo Wolf Warrior King/GT rear (Wolf is precisely observed as 12/7).
     
     Teverun branded callipers are without brackets. If a different bracket is needed, add comment at checkout indicating which of the two above desired. Note, as mentioned the industry standard designation may not necessarily relate to the rotor size of your specific make/model. For example, Warriors have 160mm rotors and use a F-160 R-140 bracket on rear.
     
     If renewing, typically existing brackets are used as TurboBrake HB callipers have similar shape and pad placement as stock eScooter callipers. If special purpose bracket is or spacers are required (including for rotor size uplift) consider some of these picks from AliExpress:
     
     MUQZI Brackets. The B(IS)
     The B (IS, International Standard) "004" F-203 R-180 is an alternative to F180-R160. Used when fitting larger rotors as shifts the calliper position laterally (horizontal) for appropriate angle.
     The A (PM, Post Mount) "005" F-203 R-203 & "006" F-180 R-180 stacks on top of B(IS) brackets. "005" also available here.
     
     
     ABS Spacers from Grey Eteri Store and HUJI Store make a tidy finish compared to stacking washers. Use M6.2 internal diameter for the M6 bolts, 9mm external diameter. Similar to the M5.2's in the TurboTight NAMI Klima Fender Spacer Kit. Alternatively you could use 6x8 or 6x10 copper sleeve from AN DE LI Hardware Fitting Store or U Officer Store.
     
     
5. Image below shows the hydraulic line (hose) supplied with TurboBrake callipers to connect to the brake levers that adopt BH59/TEKTRO fittings such as TurboBrake Levers. This calliper includes the type on left, identical to the TurboBrake 4-piston HB427-4S hose. This is a TEKTRO style fitting (hence the inclusion of BH59 insert (needle/barb) with washer). Calliper includes 7-piece kit includes O ring washer on the factory-fitted barb as shown below. The compression nut adopts the common thread of M8 (0.75 pitch) adopted by most eScooter brake levers, allowing connectivity to existing levers such as Zoom, Logan and NUTT. The steel braided flexi whip hose shown on the right with factory crimped fitting is the higher-end TurboBrake HB427-4M calliper.
   
   
6. Bracket offset (height) is the distance from centre of threaded hole in the bracket that connects to the scooter to the surface of the edge of bracket where the calliper sits. Sometimes brackets are labelled with a nameplate on the underside. Image below contrasts some of the brackets as observed on Kaabo/Zoom callipers:
   
   
7. US spelling caliper.