Maintenance and FAQ
Below are the frequently asked questions that we receive. If your question is not shown, please feel free to use our live chat feature or simply email or call us direct. We are more than happy to help you with any questions you may have.
RK CHAIN FAQ
All motorcycle chain regardless of brand is a consumable product; which means that it will not last forever and will eventually need to be replaced. RK Chain suggests that chains need to be replaced every 20,000 miles and every 3,000 miles for non-sealed chains. You should also change both the front and rear sprocket whenever you replace the chain.
RK Chain recommends cleaning a sealed chain with only a mineral based O ring safe chain cleaner. Do not use kerosene, brake cleaner, motor oil or any caustic chemicals because that can damage the seals. RK recommends that you douse a rag with the mineral based O ring cleaner and wipe the dirt off the chain. Do not use a wire brush or hard bristle brush to clean a sealed chain. The wire or hard bristles can damage the seals reducing the life of the chain.
RK Chain recommends that after cleaning the chain and before lubrication, go for a short ride around the block to remove most of the chain cleaner and or water from the chain. RK recommends that you then follow up with a quality chain lubricant designed for sealed chains while the the chain is still warm.
DO NOT USE KEROSENE OR WD40 ON A SEALED CHAIN!
All motorcycle chains regardless of brand is a consumable product; which means that it will not last forever and will eventually need to be replaced. RK Chain suggests that chains need to be replaced every 20,000 miles and every 3,000 miles for non-sealed chains. You should also change both the front and rear sprocket whenever you replace the chain.
Cleaning a non sealed chain is the same as a sealed chain. RK Chain recommends cleaning a non-sealed chain with only a mineral based O ring safe chain cleaner. Do not use kerosene, brake cleaner, motor oil or any caustic chemicals. RK recommends that you douse a rag with the mineral based O ring cleaner and wipe the dirt off the chain.
After cleaning the chain and before lubrication, go for a short ride around the block to remove most of the chain cleaner from the chain. RK recommends that you then follow up with a quality chain lubricant and apply to the chain while the chain is till warm.
RK Chain has an exclusive warranty on all sealed chains NOT used for racing purposes. For street sealed chains not used in racing, there will be a pro-rated 20,000 mile warranty. For off road sealed chain not used for racing there is a 1 year pro-rated warranty. There are some stipulations to the warranty. For complete information see the warranty card that was included with your sealed chain.
- Racing will VOID warranty
- Chain must be appropriate for the motorcycle.
- Chain must have been installed correctly and with drive system properly aligned.
- Chain must have been maintained. NO rust, corrosion, or other signs of neglect.
- Warranty does NOT cover contingent damages.
See warranty card for complete details.
We recommend that every RK Chain be installed using a chain tool. Some tools, like the RK Chain tool UCT2100(50), combine all the parts needed to break the chain, cut it to length and clip or rivet the connecting link.
Using tools that weren’t designed for chain installation and/or removal may damage your chain and/or cause a dangerous situation and may void any warranty.
For RK Chains, the flare can be as little as 0.152mm to 0.5mm but should never be over 0.7mm. The rivet pin should be flared just enough to keep the sideplate on, but not flared too much to bind the link. If measuring the diameter: MAX diameter for 4 series chains should be no more than 4.65mm (+0.1,-0) and MAX diameter for 5 series chains should be no more than 5.55mm (+0.1,-0).
RK’s new UCT2100(50) tool features a newly redesigned Flare Pin Tool that will prevent over-flaring of the rivet pin. *This only applies to the NEW UCT2100(50) tool not previous generations of UCT2100.
The answer is yes and no. It is true that initially non-sealed chains do produce less friction when compared to sealed chains.
However as time/rpm increase, sealed-ring chains significantly outperform non-sealed chains.
During normal use chains heat up and expand; this expansion can create friction resulting in horsepower loss. Due to the increased internal lubrication of sealed-ring chains, friction is reduced, allowing the chain to more freely transfer horsepower to the ground.
1. A sealed chain will last longer. That saves you money in the long-run.
2. Absorbs torque and improves acceleration
RK’s sealed ring chains offer less torsional friction and increased high-stress, high-speed performance. From the beginning of a race to the end; RK’s sealed ring chains deliver more consistent horsepower to the ground than non-sealed chains.
The nitrile butadiene seals ensure that lubrication stays inside the chain while keeping dust and dirt out. Most RK Chain seals have lubrication pools that protect against high speed abrasion, heat buildup, torsional flex and loss of lubricant under extreme conditions, resulting in longer life for the chain and sprockets. The below chart shows that sealed chains can wear longer before the elongation percentage increases.
EXCEL RIM FAQ
Rims that have been anodized require special care. DO NOT USE SIMPLE GREEN ON ANODIZED RIMS! Simple green can strip the anodizing color away from the rim surface.
Wash rims with a PH balanced soap (shampoo) using a gentle rag and rise with water thoroughly. It is NOT recommended to use a pressure washer to clean rims.
Cracks around the nipple holes indicate over-tightening of the spoke and nipples. Nipples should never be over tightened. Whenever you lace or true rims Excel always recommends using a spoke torque wrench. You can maximize your wheel strength by torquing the spokes/nipples to the appropriate specifications suggested by the manufacturer. Excel produces an adjustable torque wrench designed to tighten your nipples to the appropriate specs. See the Excel section of our website for details.
Excel stopped producing the Excel Pro Series Gen1 hub almost 12 years ago. The redesigned Gen2 Hubs featured stronger technology for the increasing Horsepower of current motorcycles. While replacement product was produced for the Gen 1 hubs for several years after the discontinuation, we have since ceased making any Gen1 product. If you still have an Gen1 hubs and need new spacers contact us. We will check our inventory to see if we still have the part number. If we do not have the part number we can supply you with the spacer drawings so that you can have a machine shop create the spacers for you.
If you need replacement carriers and we no longer have stock of the part number, then unfortunately you will have to upgrade your wheelset hub and components to the newest generation G2 hubs/carriers. Please note that Gen1 carriers/spacers and Gen2 carriers/spacers re NOT interchangeable. We do offer discounts for these upgrades as long as you send us your current Gen1 hubs/carriers. Call us for details.
Yes you can. Each letter and number of the Excel part number system identifies the various aspects of the rim. See the diagram below.
Here at RK Excel America Inc, we are environmentally conscious. In order to minimize the impact on our environment, we recycle boxes that are shipped to our facility. Therefore you may receive your package in a recycled box that may or may not have Amazon labeling tape. However RK Excel America does NOT sell any product directly to Amazon.
RK Excel America does not sell direct to dealers or the retail public. We prefer that customers find the product they need with their local dealerships. Dealerships looking for product should use their preferred parts distributor. There may be some exceptions for products that are not stocked by distributors but these are handled on a case by case basis.
Yes – Both RK Chain and Excel Rims have a MAP Policy that has been in effect since 2015. MAP on all Excel Rims, Spokes and Tool is 10%. RK Chain MAP policy is 10% on most products, with the exception of MAX Chains. MAX chains have 0% MAP.