Chain kit standard
for Model: Yamaha DT 250 MX 1R7 1977-1982
Here you get the chain set in the standard version, i.e. sprocket, chain wheel and chain in the ratio as it was originally delivered.
In our configurator you can select the sprocket and the chain wheel if you wish, the chain length is calculated on the basis of the selected sprocket or chain wheel.
Conversion Chainset Configurator
Here you can get a Conversion Chainset with the original gear ratio.
In our configurator you can select the sprocket and the sprocket wheel, if desired. The chain length is calculated on the basis of the selected sprocket and the sprocket wheel.
It is possible that an exact match of the selected gear ratio with the chain is not possible and the chain may have to be shortened, but you will never get a chain that is too short.
The conversion kit deviates from the original chain kit pitch, which is very popular, for example, for race track use.
A chain with a higher tensile load is always used as the standard chain in the conversion kit, as a (smaller) chain is usually used here.
SSprocket front coarse-toothed JT Sprocket 16 teeth
- The JT Sprockets manufacturing facility is now the largest and most modern sprocket and chainwheel production facility in the world. JT Sprockets produces the full range of aftermarket and original equipment sprockets and chainwheels.
- After subsequent heat treatment, each item is inspected by hand
Features:
- coarse toothed
- perfectly suited for sporty riding
- Milled using CNC data technology; a process that offers 100% accuracy and precision
Technical data:
PPitch 520 / 2 holes / hole spacing 42mm / internal teeth 6
inner diameter min. 21mm / inner diameter max. 25mm
Scope of delivery
1 x pinion
Sprocket steel JT Sprocket 47 teeth
The JT Sprockets manufacturing facility is now the largest and most modern sprocket and chainwheel manufacturing facility in the world. JT Sprockets produces the full range of aftermarket and original equipment sprockets and sprockets.
After subsequent heat treatment, each item is inspected by hand
Features:
- Galvanised finish extends sprocket durability
- Perfectly suited for sporty riding
- Milled using CNC data technology; a process that offers 100% accuracy and precision
Technical data:
Pitch 520 / inner diameter 125mm
bolt circle 145mm / bore 10,5mm / weight 1000 gramm
Scope of delivery
1 x steel sprocket
D.I.D X-ring chain 520VX3/104 with rivet lock
- The X-ring DID drive chain differs from the DID chain with O-ring by improved sealing of the chain link plates by means of an inserted X-shaped sealing ring.
- An "X" is formed in the cross-section. This ring seals at 4 contact points and thus achieves even better protection against contamination and leakage of the grease filling from the inside of the chain.
- This results in an even longer service life of the chain and thus of the complete motorbike chain kit. With proper care and average use, the chain kit usually lasts around 25,000 KM or more
Technical data:
520 pitch / 104 links / running index 3500
tensile strength 3720kg / with rivet lock
Advantages:
- improved sealing
- very high running performance
- up to 50% less friction compared to an O-ring seal
- Perfectly equipped, you are well equipped against dirt and water
Scope of delivery
1 x D.I.D. X-ring chain