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Front Sprocket AFAM 420 Derbi
AFAM
Article no.: AFAM49102-11

Front Sprocket AFAM 420 Derbi

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Description

AFAM 420 Derbi front sprocket

AFAM 420 Derbi sprocket, precision made sprocket from Afam, the chain drive specialist.

AFAM Sprockets – Built for Precision and Endurance

AFAM uses premium steel alloys to manufacture its sprockets, trusted by professional racing teams for decades. Chain drives are exposed to constant stress, which makes regular inspection and replacement of drivetrain components essential.

These sprockets are manufactured with high precision, ensuring excellent fitment and outstanding durability under real-world conditions. Whether you're replacing a worn stock part or fine-tuning your setup, AFAM delivers proven performance and uncompromising quality.

technical data afam derbi sprockets:

  • Chain pitch: 420
  • Teeth: 11, 12, 13, 14, 15
  • Material: Steel
  • Color: Silver
  • Type: Standard
Questions about the product
 
 
Manufacturer's Details
Hoco Parts BV
Harselaarweg 104
3771 Barneveld
Netherlands
Notes and Safety

FunCtion of front procket

The front sprocket of a motorcycle is an essential part of the chain drive. It is attached directly to the output of the gearbox and is connected to the rear sprocket via a chain.

How can I tell if the sprocket is worn?

A worn or damaged sprocket may show signs such as metallic rattling noises, worn teeth, a loose chain, or difficulty shifting gears.

smaller or larger front sprocket ?

  • Smaller front sprocket → improved acceleration
  • Larger front sprocket → higher top speed

You also have to consider the gear ratio between rear chainring and front sprocket. The calculation is: number of teeth of rear sprocket / number of teeth of front spocket. A low ratio increases speed, while a high ratio improves acceleration.

To ensure optimal life, it is important that you do not neglect chain care, we recommend a special chain brush.

Technical details
Front Sprocket AFAM 11 teeth 420 Derbi
Article no.AFAM49102-11
EAN5414837012917
Weight0,07 kg
BrandAFAM
Product typeFront sprocket
Chain type420
Front sprocket11

Spare Parts

Compatible vehicles for this article
Aprilia
RS4 50cc (after 2011 - D50B0 Euro 3)RS 50 Euro 4RS 50cc (D50B0) - 2006 - 2011RX 50 (as from 2006 D50B1)RX 50cc Factory Euro 4 RX Enduro 50cc (D50B0) - after 2006SX 50cc Euro 4SX 50cc Factory Euro 4 SX SM 50cc (D50B0) - after 2006
Bultaco
Astro Enduro 50cc (DERBI)Lobito SM 50cc (DERBI)
Cagiva
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Derbi
Derbi Special Comp.GPR 50cc (1998 - 2001)GPR 50cc after 2012GPR 50cc Nude 2004 (EBS050)GPR 50cc Nude 2005 2011 (D50B0 Euro 3)GPR 50cc R - Replica (2001 - 2004)GPR 50cc Racing 2004 (EBS050)GPR 50cc Racing 2005 - 2011 (D50B0 Euro3)Senda 50cc (before 2000) - (tubular)Senda 2000 50cc (before 2004) - (perimeter) Euro2Senda DRD PRO Racing SM(after 2005)-(D50B0 Euro 3)Senda DRD PRO SM (after 2005) - (D50B0 Euro 3)Senda DRD Racing 50 SM after 2011 - (D50B0 Euro 3)Senda DRD SM (before 2000) - (tubular)Senda DRD SM (before 2004) - (perimeter)-Euro 2Senda DRD X-Treme 50 R '10 - '17 - (D50B0 Euro 3)Senda DRD X-Treme SM '10 - '17 - (D50B0 Euro 3)Senda Enduro (before 2000) - (tubular)Senda Enduro 2000 (before 2004) - (perimeter)-Euro 2Senda Racing SM Euro 4Senda R DRD Enduro (before 2000) - (tubular)Senda R DRD Enduro (before 2004) - (perimeter)-Euro2Senda R DRD PRO Enduro (after 2005) -(D50B0 Euro 3)Senda R DRD Racing Enduro (after 2005)-(D50B0 Euro 3)Senda R X-Race Trail '05 - '10 - (D50B0 Euro 3)Senda R X-Treme Enduro '05 - '10 - (D50B0 Euro 3)Senda SM 50cc (before 2000) - (tubular)Senda SM 2000 (before 2004) - (perimeter)-Euro 2Senda SM Limited Euro 4Senda X-Race 2000 (before 2004) - (perimeter)-Euro 2Senda X-Race SM '05 - '10 - (D50B0 Euro 3) Senda X-Race Trail (before 2000) - (tubular)Senda X-Trem Enduro (before 2000) - (tubular)Senda X-Trem Enduro (before 2004)-(perimeter)-Euro 2Senda X-Treme R Euro 4Senda X-Treme SM '05 - '10 - (D50B0 Euro 3) Senda X-Trem SM (before 2000) - (tubular)Senda X-Trem SM (before 2004) - (perimeter) - Euro 2Senda à partir de 2018
Gilera
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Valenti Racing
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