Boulder B1 110, Coolster 110, Apollo

12 tooth sprocket  Fits 420 Chain.  Size is usually stamped on your front sprocket from the factory.  See picture for exact measurements.  Check your current tooth count before ordering.  12 tooth sprockets and smaller require you to grind down the keeper ring so the chain does not ride up onto the keeper ring.  We offer Higher Quality 12 - 17 tooth sprockets with these same measurements as the picture on our Whygostock website as well as modified retainer hardware kits.  Fits many different brand Chinese made units.  If your sprocket has different measurements, let us know.  We have 100's of different sprockets in stock.
 
Smaller size sprockets in the front give you more take off power with less top speed.  Larger front sprockets give you more top end speed with a slower take off.
 
Fit many Chinese made "off brand" ATV and dirt bikes with Honda clone type motors.
 
We use these sprocket in our shop to modify Taotao 110cc and 125cc model ATVs with a 420 chain (all models except 125f1, 125e, 125h which have a 428 chain, we can also get sprockets for these models, too)
 
Fits Taotao models:
110B
110C
110L
110D
110H
110F
125A
125D
125G
135D
 
 
We offer higher quality rear sprockets also with different sizing options.

See our "Whygostock" videos on YouTube!

Shipping and Inventory Levels

We ship most orders within 2 business days of receiving confirmed payment, but sometimes as soon as the same day.  If your order is time sensitive contact us via email before ordering to confirm ability to ship same day.

We operate our Ebay Store (whygostock), our physical location (Billings Powersports) as well as our website (whygostock) which all share inventory.  For this reason, inventory levels are rarely correct.  We do our best to keep all inventory in stock or on order.  If a problem arrises in which a delay will occur we will contact you with the option to wait or receive a full refund.

Some items may be removed from original packaging to reduce shipping impact.  If this is a problem, contact us via email before you place your order.

Returns

No return on any electrical items removed from package!!!  All returns should be in new, resaleable condition in the original packaging.  If you have ordered an incorrect item we will help you get the correct item.  Customer is responsible for return and reshipping charges.  Contact us via email.  If we have shipped an incorrect item, return the item and we will send the correct item and reimburse you for shipping up to the same amount paid for original outbound shipping charges.

International Orders

All international orders are shipped using USPS Express and USPS Priority shipping options.  We will not use First Class International because it does not provide tracking.  First Class Shipping is available through our other outlets.  Customer is responsible for all customs, taxes and additional shipping fees declared by your country.  Do not ask us to mark your package as a "Gift".


Warranty

Whygostock.com warrants all Aftermarket items and Whygostock.com brand items with a 30 day manufaturer replacement warranty.  Customer my responsible for return shipping.

Motion Pro and Hyosung Motors America items are covered by the manufacturer directly.  Whygsotock.com can assist with coverage, but does not issue or offer any warranty.