MKS announced the new X5 line of servos (basically offering variations of the X6 line at a more affordable price). The line includes the HBL550 which is the standard servo size for 1/8th scale cars (and trucks and even some 10th scale applications that require more power) and the HBL550LX, which is a “shorty” servo, perfect for most 1/10th scale buggy and touring car applications.

Main features:

X5 HBL550

• Dimensions: 40x20x38.8mm
• Weight: 79,5 grams
• Torque/Speed:
  29 kg-cm @ 4.8V (.117s @ 6.0V)
  36 kg-cm @ 7.4V (.094s @ 7.4V)
  38 kg-cm @ 8.2V (.085s @ 8.2V)

X5 HBL550LX

• Dimensions: 40.5×20.5×26.4mm
• Weight: 57,83 grams
• Torque/Speed:
  10.4 kg-cm @ 4.8V (.13s @ 4.8V)
  13.0 kg-cm @ 6.0V (.10s @ 6.0V)
  16.0 kg-cm @ 7.4V (.08s @ 7.4V)

Source: www.mksservosusa.com