GS-Riders International

This is an excerpt of a sprocket hardness testing as published by MOTORRAD NEWS edition 08 - 2010. The magazine anonymously bought sprockets matching for a Suzuki Bandit 1250. The actual testing was performed at the facilities of the Technical University in Dortmund / Germany. The results show the median of 3 measurements from each sprocket.


1. FRONT SPROCKETS

Afam
Teeth: 13 - 18
Weight*: 374 g
Tested Hardness: 745 HV 30

Esjot
Teeth: 13 - 19
Weight*: 371 g
Tested Hardness: 663 HV 30

JT
Teeth: 13 - 19
Weight*: 327 g
Tested Hardness: 739 HV 30

Hi-Q (Polo Motorrad)
Teeth: 14 -18
Weight*: 358 g
Tested Hardness: 719 HV 30

Sunstar
Teeth: 13 - 18
Weight*: 369 g
Tested Hardness: 856 HV 30

2. REAR SPROCKETS STEEL

Afam
Teeth: 40 - 46
Weight**: 981 g
Tested Hardness: 611 HV 30

Esjot
Teeth: 40 - 47
Weight**: 958 g
Tested Hardness: 193 HV 30

JT
Teeth: 40 - 48
Weight**: 1067 g
Tested Hardness: 209 HV 30

Hi-Q (Polo Motorrad)
Teeth: 40 - 45
Weight**: 886 g
Tested Hardness: 202 HV 30

Sunstar
Teeth: 40 - 46
Weight**: 962 g
Tested Hardness: 460 HV 30

3. REAR SPROCKETS ALUMINIUM

Afam
Teeth: 40 -46
Weight**: 384 g
Tested Hardness:

Esjot
Teeth: 40 - 46
Weight**: 357 g
Tested Hardness: 198 HV 30

JT
Teeth: 43 - 44
Weight**: 355 g
Tested Hardness: 201 HV 30

* = for 18 teeth
** = for 43 teeth