12:52 Chain Drive Big Wheel Speed Kit #35 Chain Drive Kit 12:52 Replaces: 1000-5M-15 belt 1000-5M-18 belt 1000-5M-20 belt #35 ansi roller chain kit for: Chuweng Raser big wheel with 145/70-6 size tires and 6 inch wheels. Also FITS Xcooter Thunder, Saloor Big Wheel, Sonic Big Wheel, THS Big Wheel, Desert Storm Big wheel, Steeple Big Wheel, PanthR Big Wheel, AND OTHER MODELS using 145/70-6 rear tire. Kit includes #35 ansi chain & master link (This chain is 128 pins including master link) a 12 tooth #35 shaft sprocket and a 52 tooth #35 wheel sprocket, one 1/8 roll pin and one 1/8 inch drill bit. This 12:52 kit is a gear ratio of 1:4.3 The factory sprocket on the shaft is 20 tooth and the factory wheel sprocket is a 102 tooth 5m belt drive. The factory gearing is 1:5.1 This chain drive set is 1:4.3 For factory chain drive gear ratio of 1:5 see our 12:60 Chain drive kit for big wheel scooters. This 52 tooth sprocket is the same as oem sprocket for "The Rocky" but the shaft sprocket is totally different so this is not for "Cobra Extreme" or "The Rocky"

12:60 Chain Drive for Big Wheel OEM gear ratio Kit #35 Chain Drive Kit 12:60 Replaces: 1000-5M-15 belt 1000-5M-18 belt 1000-5M-20 belt #35 ansi roller chain kit for: Chuweng Raser big wheel with 145/70-6 size tires and 6 inch wheels. Also FITS Xcooter Thunder, Saloor Big Wheel, Sonic Big Wheel, THS Big Wheel, Desert Storm Big wheel, Steeple Big Wheel, PanthR Big Wheel, AND OTHER MODELS using 145/70-6 rear tire. Kit includes #35 ansi chain & master link (This chain is 128 pins including master link) a 12 tooth #35 shaft sprocket and a 60 tooth #35 wheel sprocket, one 1/8 roll pin and one 1/8 inch drill bit.The factory sprocket on the shaft is 20 tooth 5m and the factory wheel sprocket is a 102 tooth 5m belt drive sprocket. The factory gearing is 1:5.1 This 12:60 chain drive kit is 1:5 ratio For top speed chain drive kit on a "Big Wheel Scooter" see our 12:52 kit which is a gear ratio of 1:4.3 and a Chain drive kit for big wheel scooters only, see exclusion below. This 52 tooth sprocket is the same as oem sprocket for "The Rocky" but the shaft sprocket is totally different so this is not for "Cobra Extreme" or "The Rocky"

This belt will fit our "Big Wheel" Scooters, BUT!! (It is weak) compared to the 5m-18 factory belt. We have even found that slight Shimming to Xcooter Thunder a.k.a. Raser Big Wheel a.k.a. PanthR models that have 102 tooth aluminum wheel sprockets with lip out can be shimmed behind sprocket to allow for running even 5m-20 belts. Not sure about Salorr Big Wheel model using 5m-20 yet without fipping both sprockets and maybe replacing wheel sprocket from plastic to aluminum 102 tooth sprocket from Chuweng.

1000-5M-18 BELT for big wheel models only such as Chuweng Raser "Big Wheel" & xcooter thunder & Salorr & Star II & Grizzly & PanthR & THS 04, THS 05. and others using 102 tooth 5m wheel sprocket This belt will fit our "Big Wheel" Scooters, BUT!! We have even found that slight Shimming to Xcooter Thunder. Atx 1000 a.k.a. Raser Big Wheel a.k.a. PanthR models that have 102 tooth aluminum wheel sprockets with lip out can be shimmed behind sprocket to allow for running even 5m-20 belts. Not sure about Salorr Big Wheel model using 5m-20 yet without fipping both sprockets and maybe replacing wheel sprocket from plastic to aluminum 102 tooth sprocket from Chuweng.

1000-5m-20 Belt Requires Sprocket shimming or swap or modification for use. We have even found that slight Shimming to Xcooter Thunder. Atx 1000 a.k.a. Raser Big Wheel a.k.a. PanthR models that have 102 tooth aluminum wheel sprockets with lip out can be shimmed behind sprocket to allow for running even 5m-20 belts. Not sure about Salorr Big Wheel model using 5m-20 yet without fipping both sprockets and maybe replacing wheel sprocket from plastic to aluminum 102 tooth sprocket from Chuweng.

1000 Belts that are 20mm Wide need Spacer/Shim for wheel sprocket to allow use of 1000-5m-20 belt.

102 tooth 5M Aluminum Belt Wheel Sprocket Fits Xcooter Thunder, Raser, Salorr, Star II Big Wheel For use with 1000-5m-18 or now 1000 5m 20 belt With the use of a scootR sprocket spacer disc

500-5m-15 Belt For 96/97/98 Chuweng Raser R2 Clutch and also Wheel drive on Raser scooters with CY engines

Nuke gas scooter tire drive belt, 520-5m-17 Belt, also fits Lowrider Rock or StandR if not chain drive

tire drive belt for StandR scooter and Nuke scooter. 525-5m-15-belt This belt now superceeds to factory spec of 520-5m-17

560-5m-15 Belt For use as clutch belt when 575 clutch belt is still loose even with motor/engine adjusted all the way back. If motor mounts are weak and dry rotted, replace them first to eliminate that being the source of a belt tension and adjustment issue.

560-5M-25 BELT FITS XCALIBER CLUTCH BELT AS WELL AS XCOOTER XPLORER SCOOTER