1) for Sram 1030/1050/1070 cassette
you remove one of these cogs: 15T , 17T , 19T or 22T depending on needs and on tracks to be faced to be replaced with
40T or 42T ARI cog without any modification on your bike
2) for Sram 1080 cassette
you remove 14T cog to be replaced with 40T or 42T ARI cog without any modification on your bike
replacement is easy and fast - see video attached
material used is hard anodized ERGAL 7075T6
all range of colours is available in our colours table in web site
with Ari cog it is supplied a special screw which replace the original derailleur screw to adjust the regulation of the rear
derailleur itself
weight of 40 teeth cog is of 70 grams
weight of 42 teeth cos is of 73 grams
40T And 42T ARI cog for shimano
and sram rear cassette
mounting instruction video
Derailleur adjustment photo
Derailleur adjustment with ARI cog for Shimano and Sram cassette
On completion of the mounting of ARI cog for Shimano and Sram cassette follow these simple instructions
to adjust the derailleur
1) Place down one of the teeth of ARI cog perpendicular to the ground (do not choose a milled tooth)
2) Place upward one of the teeth of the upper pulley of the derailleur always perpendicular to the ground
3) By turning the adjusting screw of the derailleur (photo 1) adjust the distance between the teeth
at an height between 6 and 7mm (photo 2)
NB Screw L of the rear derailleur has to be generally unscrewed of one-half turn, this allow the chain to shift up
efficiently on the cog added because the cassette is slightly more internal than it was originally (photo 3)
photo 1
photo 2
photo 3
Adjustment instructions of rear derailleur with larger cogs
Instructions for the correct adjustment of rear derailleur with larger cogs
In the distance adjustment of the rear derailleur from the teeth of the larger cog you have to take extra care that
the inner cage of the derailleur itself, especially during descent, does not touch the gear tooth.
In the photo 1 it is shown the inner side of the cage marked by the tooth of the cog because the adjustment WAS
NOT CORRECT
In the photo 2 it is highlighted interference between the internal cage of the front derailleur and the end of the
teeth of the cog; also in this case the adjustment WAS NOT CORRECT
N.B. ATTENTION, THE INTERFERENCE OF THE DERAILLEUR CAGE WITH THE TEETH OF THE COG CAN
CAUSE THE BREAKING OF THE TEETH OF THE COG
Suggestions for length regulation of chain with monoring
Suggestions for the correct and efficient regulation of the chain lengh with monoring
To avoid accidental falls of the chain with the use of monoring without guidechain it is necessary that the lenght of the
chain itself is perfect.
With the chain positioned on the largest rear cog, as is highlighted in the photo, the movement of the front derailleur
should be approximately between 4 and 5 mm
NB
Ari cogs are suitable both for free design hub (hub 1)
than to that with support (hub 2)than to that with support (hub 2)
Hub Compatibily
Hub 1
Hub 2
COG for SRAM rear cassette 1030/1050/1070
cod. 299
€ 80,00
1080
cod. 324
€ 80,00