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After Market Shocks

How to's for Replica Racers
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toratora
Posts: 3153
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1734
x 1969
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After Market Shocks

Post by toratora » Wed Oct 24, 2018 3:39 pm

This is a post head for after market shocks—as more info becomes available this thread will get filled out.
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User avatar
toratora
Posts: 3153
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1734
x 1969
Contact:

After Market Shocks: Risse Racing

Post by toratora » Wed Oct 24, 2018 5:39 pm

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Derbi GPR

For the classic Derbi gpr (1998-2004) the current best option is produced by Risse Racing, a company that makes performance shocks for mountain bikes.

They use to market a coil over shock, with a remote reservoir, adjustable pre-load, compression damping, and rebound damping. This shock is not currently listed in their catalog, but they can be contacted directly about assembling a shock for the classic GPR.
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User avatar
toratora
Posts: 3153
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1734
x 1969
Contact:

After Market Shocks: 2005-2009 Derbi GPR125 Shock Specs

Post by toratora » Fri Oct 26, 2018 1:39 am

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2005-2009 Derbi GPR125 Shock Specs

These are the dimensions of the two stroke 125 GPR that Derbi produced from 2005 to 2009. The shock would fit on a 50cc GPR from the same edition. The main difference between the two were the ability to adjust the preload, but the damping on the 125 shock was also better.

For ordering an aftermarket shock these specifications would be quite handy.
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User avatar
toratora
Posts: 3153
Joined: Wed Oct 11, 2017 1:05 am
Location: San Francisco
Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
x 1734
x 1969
Contact:

After Market Shocks: Classic Aprilia RS 50 - DNM Rear MT-BAG w/Remote

Post by toratora » Sat Oct 12, 2019 9:39 am

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A number of people have found the DNM MT-BAG w/Remote reservoir rear shock to work well on the 1999-2005 Aprilia RS 50. As of this posting they are selling for $229.49 plus shipping.

Product Description
Shock DNM REAR MT-BAG - 280mm long

Key Features:
  • Nitrogen charged oil dampened race shock
  • Remote reservoir compression adjustment rebound adjustment 800 pound per inch coil
  • Suitable for straight style swing arms with 280mm length
  • For use with straight or MX type swingarm
. https://youtu.be/-8o5d8WnAYA
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User avatar
Rj_666
Posts: 58
Joined: Sat Nov 11, 2017 3:13 pm
Location: Tacoma, WA
Replica: 2 x Aprilia RS50
1 X Derbi Senda SM
x 22
x 28

Re: After Market Shocks

Post by Rj_666 » Sat Feb 01, 2020 11:59 am

I have been VERY pleased with DNM MT-BAG shock on my black RS50, so pleased that I've ordered a second unit for the Silver RS50 !
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