Independent Front Suspensions (IFS)

  • As known, independent front suspensions constitute the latest axle technology for city buses and coaches. Compared to rigid front suspensions, independent suspensions offer improved roll stability, better comfort at ride & handling and wider aisle corridor
  • Driven by its Bus & Coach segment focus,  independent front suspensions are seen as the core product of BRIST product portfolio. Hence, the Company has developed a proven track record in independent suspension field
  • As of today, BRIST Axle is the only company in world offering full range of independent front suspensions for all the 17.5″, 19.5″ and 22.5″ rim sizes. Meaning that, BRIST Axle is the only company in the world serving needs of all type vehicles of bus & coach segment in the most effective way
  • Various types of BRIST IFS has proven its performance through the vehicles of its well-known customers across the globe. (e.g. BYD, Isuzu, Otokar, and many more)
  • BRIST categorises its IFS products under 2 main sub-categories as “Generation#1” and “Generation#2” types
  • The main difference between these 2 sub-categories is that they have different kinematics with their own advantages

Independent Front Suspensions Generation#1 Types

  • BRIST patented T-Joint design provides a “maintenance-free” concept, which avoids the need of installing central lubrication system for greasing nipples
  • Hence, BRIST Generation#1 IFS provides significant cost reduction through savings on maintenance
 TypeAxle Load Max
(kgf)
Typical Vehicle Length
(m)
Tire Size MaxWheel CutWheel Travel
(mm)
Axle Weight
(kg)
Wheel Size
(mm)
Independent Front Suspension 17.5IFS TJ 41-1754,1006 to 8235/75 R17.5″54°/42.5°± 8027817.5″x6.75″
Bolt Circle 205
Independent Front Suspension 19.5IFS TJ 55-1955,5007 to 9265/70 R19.5″55°/43°± 8541219.5″x7.5″
Bolt Circle 275
Independent Front Suspension 22.5IFS TJ 58-2255,8008 to 10275/70 R22.5″55°/45°± 9046922.5″x7.5″
Bolt Circle 335
Independent Front Suspension 22.5IFS TJ 81-2258,10010 to 18315/70 R22.5″55°/45°± 9047822.5″x9″
Bolt Circle 335
IFS TJ 41-175Independent Front Suspension 17.5
Axle Load Max4,100 kgf
Typical Vehicle Length6 to 8 m
Tire Size Max235/75 R17.5″
Wheel Cut54°/42.5°
Wheel Travel± 80 mm
Axle Weight278 kg
Wheel Size17.5″x6.75″
Bolt Circle 205mm
 
IFS TJ 55-195Independent Front Suspension 19.5
Axle Load Max5,500 kgf
Typical Vehicle Length7 to 9 m
Tire Size Max265/70 R19.5″
Wheel Cut55°/43°
Wheel Travel± 85 mm
Axle Weight412 kg
Wheel Size19.5″x7.5″
Bolt Circle 275 mm
 
IFS TJ 58-225Independent Front Suspension 22.5
Axle Load Max5,800 kgf
Typical Vehicle Length8 to 10 m
Tire Size Max275/70 R22.5″
Wheel Cut55°/45°
Wheel Travel± 90 mm
Axle Weight469 kg
Wheel Size22.5″x7.5″
Bolt Circle 335 mm
 
IFS TJ 81-225Independent Front Suspension 22.5
Axle Load Max8,100 kgf
Typical Vehicle Length10 to 18 m
Tire Size Max315/70 R22.5″
Wheel Cut55°/45°
Wheel Travel± 90 mm
Axle Weight478 kg
Wheel Size22.5″x9″
Bolt Circle 335 mm

Independent Front Suspensions Generation#2 Types

  • Generation#2 type Independent Front Suspensions offer a different kinematics than Generation#1 types
  • Generation#2 types possess innovative upper and lower T-Joints in multi-function
  • Different kinematics of BRIST Generation#2 IFS brings a more lighter system weight, optimised scrub radius, and compact packaging dimension in height (low silhouette)
  • BRIST Generation#2 IFS are the MOST LIGHTEST in the world, as well as offering the BEST TURNING RADIUS 
 TypeAxle Load Max
(kgf)
Typical Vehicle Length
(m)
Tire Size MaxWheel CutWheel Travel
(mm)
Axle Weight
(kg)
Wheel Size
(mm)
Independent Front Suspension 19.5IFS TJC 55-1955,5007 to 9265/70 R19.5″55°/44°± 9038019.5″x7.5″
Bolt Circle 275
Independent Front Suspension 19.5IFS TJC 80-2258,00010 to 18315/70 R22.5″55°/49°± 9046022.5″x9″
Bolt Circle 319
IFS TJ 55-195Independent Front Suspension 19.5
Axle Load Max5.500kgf
Typical Vehicle Length7 to 9 m
Tire Size Max265/70 R19.5″
Wheel Cut55°/44°
Wheel Travel± 90 mm
Axle Weight380 kg
Wheel Size19.5″x7.5″
Bolt Circle 275 mm
 
IFS TJC 80-225 HIndependent Front Suspension 19.5
Axle Load Max.8,000 kgf
Typical Vehicle Length10 to 18 m
Tire Size Max315/70 R22.5″
Wheel Cut55°/49°
Wheel Travel± 90 mm
Axle Weight460 kg
Wheel Size22.5″x9″
Bolt Circle 319 mm