Rigid Front Suspensions (RFS)

  • BRIST offers two main sub-categories of rigid front suspensions, which are “traditional” and “deep drop” types
  • Key difference between these 2 sub-categories is that the deep drop types provide flat floor passage in front, whereas traditional types do not serve for low floor applications
  • Considering significantly low warranty claims recorded over the last 10 years, BRIST RFS has proved its success in field with the performance in vehicles of reputable customers (e.g. Isuzu, BMC and many more)

Rigid Front Suspensions Traditional Types

  • BRIST offers different versions of rigid front suspensions varying from 4.1t to 6.0t axle loading, which are widely used for midi-buses and light / medium trucks
  • BRIST RFS differentiates among competitor products, because its offers an optimized axle weight, customized drop center and compact wheel-ends with unitized hub bearing
TypeAxle Load Max
(kgf)
Vehicle Width
(mm)
Distance Between
Leaf Spring Pads
(mm)
Wheel Steering
Angle Max
Axle Weight
(kg)
Wheel Size
(mm)
Rigid Front SuspensionRFS 41-175 (Truck)4,1002,050/2,10079050°21217.5″x6″
Bolt Circle 222
Rigid Front SuspensionRFS 41-175 (Bus)4,1002,250/2,30088050°21917.5″x6.75″
Bolt Circle 222
Rigid Front SuspensionRFS 45-175 (Bus)4,5002,250/2,30088050°22717.5″x6.75″
Bolt Circle 245
Rigid Front SuspensionRFS 55-1955,5002,300/2,40079055°29719.5″x7.5″
Bolt Circle 275
Rigid Front SuspensionRFS 60-1756,0002,40079245°24417.5″x6.75″
Bolt Circle 275
Rigid Front SuspensionRFS 60-1956,0002,40079245°30319.5″x6.75″
Bolt Circle 275
RFS 41-175 (Truck)Rigid Front Suspension
Axle Load Max4,100 kgf
Vehicle Width2,050/2,100 mm
Distance Between Leaf Spring Pads880 mm
Wheel Steering Angle Max50°
Axle Weight212 kg
Wheel Size17.5″x6″
Bolt Circle 222 mm
RFS 41-175 (Bus)Rigid Front Suspension
Axle Load Max4,100 kgf
Vehicle Width2,250/2,300 mm
Distance Between Leaf Spring Pads790 mm
Wheel Steering Angle Max50°
Axle Weight219 kg
Wheel Size17.5″x6.75″
Bolt Circle 222 mm
RFS 45-175 (Bus)Rigid Front Suspension
Axle Load Max4,500 kgf
Vehicle Width2,250/2,300 mm
Distance Between Leaf Spring Pads880 mm
Wheel Steering Angle Max50°
Axle Weight227 kg
Wheel Size17.5″x6.75″
Bolt Circle 245
RFS 55-195Rigid Front Suspension
Axle Load Max5,500 kgf
Vehicle Width2,300/2,400 mm
Distance Between Leaf Spring Pads790 mm
Wheel Steering Angle Max55°
Axle Weight297 kg
Wheel Size19.5″x7.5″
Bolt Circle 275 mm
RFS 60-175 (Bus)Rigid Front Suspension
Axle Load Max6,000 kgf
Vehicle Width2,400 mm
Distance Between Leaf Spring Pads792 mm
Wheel Steering Angle Max45°
Axle Weight244 kg
Wheel Size17.5″x6.75″
Bolt Circle 275
RFS 60-195 (Bus)Rigid Front Suspension
Axle Load Max6,000 kgf
Vehicle Width2,400 mm
Distance Between Leaf Spring Pads792 mm
Wheel Steering Angle Max45°
Axle Weight303 kg
Wheel Size19.5″x6.75″
Bolt Circle 275

Rigid Front Suspensions Deep Drop Types (RDD)

  • BRIST offers different versions of rigid deep drop varying from 4.2t to 5.5t axle loading, which are widely used are city-bus like applications, ready to fit to chassis.
  • Compromising the gap between engine sump and axle beam, and certain level of ground clearance; deep drop versions have been engineered to fit into the tight spaces, avoiding any collision of engine at its lowered position for flat floor passage in front.
  • BRIST deep drops have proven its performance in most difficult climate and terrain conditions such as Uzbekistan, Tajikistan and Turkey.
TypeAxle Load Max
(kgf)
Vehicle Width
(mm)
Drop Value
(mm)
Distance Between
Leaf Spring Pads
(mm)
Wheel Steering
Angle Max
Axle Weight
(kg)
Wheel Size
(mm)
Rigid Deep Drop Front SuspensionRDD 45-1754,5002,400/2,450114N/A51°268 to 305*17.5″x6″
Bolt Circle 205
Rigid Deep Drop Front SuspensionRDD 42-1754,2002,350/2,4001671,10053°25517.5″x6″
Bolt Circle 245
RDD 45-175Rigid Deep Drop Front Suspension
Axle Load Max4,500 kgf
Vehicle Width2,400/2,450 mm
Drop Value114 mm
Distance Between Leaf Spring PadsN/A
Wheel Steering Angle Max51°
Axle Weight268 kg as bare 305 kg with susp. legs
Wheel Size17.5″x6″
Bolt Circle 205 mm
RDD 42-175Rigid Deep Drop Front Suspension
Axle Load Max4,200 kgf
Vehicle Width2,350/2,400 mm
Drop Value167 mm
Distance Between Leaf Spring Pads1,100 mm
Wheel Steering Angle Max53°
Axle Weight255 kg
Wheel Size17.5″x6″
Bolt Circle 245 mm
*268 kg as bare, 305 kg with suspension legs