Max Speed Technology recently released aluminum center pulleys for the FS-01D and the MS-01D chassis. MST made its first appearance in 2011 with the MS-01D chassis, and followed up in 2012 with the popular FS-01D. The chassis has been very well received by the RC Drift community so it is good to see new option parts. MST has once again shown commitment to their chassis by releasing new aluminum center pulleys for greater countersteer CS ratios. The new aluminum pulleys are more durable and now all MST chassis will be capable of up to 2.0 CS ratio. These pulleys are a great addition option part for all MST chassis owners.
MST Aluminum Center Pulleys
- Part Number: 210207 – 210210
- Available from 10T, 11T, 12T, 13T, and 18T
- CS Ratios: 1.38, 1.54, 1.66, 1.82, 2.00
- Made of durable lightweight aluminum
- Compatible with all MST based chassis: MS-01D, MS-01d Pro, MS-01D GT, MS-01D VIP, FS-01D
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Source: Max Speed Technology

i think that for the 11t and 12t for the ms chassis you need a 225 belt, no? and the 13t at 1.54 is a 228 (stock) belt.
MST made a mistake with their original chart, the new one has been updated in the post
Any idea if these will fit other chassis as well?
these pulleys are 5mm center bore, check your chassis
i think that for the 11t and 12t for the ms chassis you need a 225 belt, no? and the 13t at 1.54 is a 228 (stock) belt.
MST made a mistake with their original chart, the new one has been updated in the post
Any idea if these will fit other chassis as well?
these pulleys are 5mm center bore, check your chassis