Rolf Prima

Frequently Asked Questions

Below are some of the common questions we get regarding our wheels, if you don't see the answer to your questions, don't hesitate to contact us or send an email to: info@rolfprima.com.

Technology questions

Product questions

Service questions

Q: Why are the spokes paired at the rim?
A: By pairing spokes at the rim we are able to neutralize the left and right pulling forces, which allows us to build with fewer spokes, making lighter and more aerodynamic wheels.

Imagine a very flexible rim using 10 evenly spaced spokes. It is easy to see how the rim will not run true because the rim is too flexible to resist the unbalanced left and right pulling forces under the tensioned spokes. With conventional lacing, the rim needs to be stiffer (heavier), more spokes need to be used or the spoke tensions need to be lowered. All have negative consequences.
Imagine that same rim with 10 paired spokes. The paired spokes balance the left and right forces so the wheel runs true. As spoke counts go down, everyone else has to use heavier rims. Not us.

For more on our technology visit our Tech page here

Q: How do Paired Spokes allow Rolf Prima to build stronger wheels?
A: Rolf Prima wheels get their strength, stiffness and stability through the use of high spoke tensions. By pairing the spokes at the rim, we can build each wheel with two or more times the spoke tension than a traditionally laced wheel. Because the left and right side spokes meet at the rim at the same point, the left and right pulling forces from the high tensions are negated allowing the use of higher tension with no lateral trueness issues. These higher tensions increase stiffness and improve spoke durability by decreasing the load-cycle the spoke experiences. As the wheel rotates and each spoke comes in contact with the road surface it goes through a full tension to detension process under the weight of the rider. Higher tensioned spokes will not go from full tension to zero tension - that is easier on the spoke.

Q: Why is one rear hub flange bigger than the other?
A: When you stand on the pedals, the chain pulls on the cogs of the rear wheel. This puts a torque into the rear hub. That torque gets transmitted through the spokes to the rim - that's what makes it turn. Our patented Differential Flange Diameter™ on the rear hub helps spread that torque to the non-drive spokes so it is not absorbed by only the drive side spokes. The larger flange provides a lever arm to provide that mechanical advantage.

Q: How are hand-built wheels better than machine built wheels?
A: Most bicycle wheels sold today are built using machines. For run-of-the-mill wheels this can work, but to build a truly light wheel with uniform tensions, you just can't match the skill of human hands. Every Rolf Prima wheel is carefully hand-built using a painstaking build process that enables our wheels to run true longer - without the need for constant attention or a "break-in period". In effect we build each wheel three times with two stress cycles in the build to seat and stretch all components.

Q: Why do you use internal spoke nipples?
A: Internal nipples allow us to make a stronger wheel with higher spoke tensions for better fatigue life and stiffness. External nipples have a flange that is loaded in tension under the pulling forces of the spokes. Internal nipples are loaded in compression. Under higher tensions a nipple in compression lasts longer. As a bonus, aerodynamic performance is also significantly improved since the nipples are located inside the rim creating less wind drag. View our wind tunnel results here

Q:Why do you use J-bend spokes?
A: Ahh. The age-old question: Straight pull versus J-bend. The J shape of the spoke where it enters the spoke hole of the hub allows it to rotate slightly in the spoke hole under the torque loads coming from the chain/cogs. This movement helps the spoke absorb this input force more easily - increasing fatigue life. If you look closely at many straight pull hub designs, many try to replicate this feature including one that uses 2 flanges per side (4 per hub) with straight pull spokes threaded into brass barrels joining the flanges to allow rotation. In effect, a heavy way to replicate the benefits of a J-bend spoke. We cut to the chase and use the best spoke shape around - J bend.

Q: Is my wheel Campagnolo 11 speed compatible?
A: All 2010 wheels and almost all 2009 wheels are 11 speed compatible. For older wheels, here is a breakdown that should help you determine what you need to do to make it work with 11 speed Campagnolo. click here

Q: Are Rolf Prima wheels compatible with Shimano, Campagnolo and SRAM drivetrains?
A: Yes. Shimano and SRAM systems use the same freehub body shape. Campagnolo however is different. Rolf Prima makes wheels that are compatible with either Campagnolo or Shimano/ SRAM drive systems. You will need to specify which system you need when buying your wheels. Don't worry though, if you change systems later, existing wheels can be converted to either system. For more information, click here for conversion instructions.

Q: Does Rolf Prima recommend a maximum tire inflation pressure?
A: Yes, for aluminum clincher rims, do not inflate tires above the inflation pressure indicated on the tire sidewall or 120 psi whichever is lower. For Carbon tubular wheels, inflate tires to the maximum inflation pressure indicated on the tire sidewall, or at least a minimum of 120 psi.

Q: Where can I purchase Rolf Prima wheels?
A: We sell our wheel systems through specialty bicycle and triathlete shops everywhere. If you can't find a shop near you or your favorite shop is not on our dealer list, let us know. We'll contact them to set them up as an authorized Rolf Prima dealer. See our Dealer locator: Rolf Prima Dealer locator.

Q: Is there a maximum rider weight on Rolf Prima Wheels?
A: Yes, we make recommendations for every wheel, but road conditions, rider skill and rider expectations play a more significant role in determining the limits of a wheel. Check with your local authorized Rolf Prima Dealer for a rider evaluation. Click here to see Wheel Specs.

Q: Do you make brake pad recommendations for your wheels?
A: Yes

Your Rolf Prima alloy wheels do not require special brake pads. Brake pads from many manufacturers are available in different compounds and it is important that only soft compound pads designed for aluminum rims are used with your Rolf Prima wheels. Hard compound pads are abrasive and will decrease the life of your wheels. Good pads include Kool Stop, Shimano Dura Ace and SwissStop.
Rolf Prima Carbon wheels with carbon brake walls feature a specially prepared braking surface and can be susceptible to heat build-up issues and abrasion. Though these rims do not require special pads, some pads work better than others. We recommend the use of Zipp, SwissStop or Corima brand cork brake pads for use on all Rolf Prima carbon rims. We do not recommend Campagnolo brake pads. There is a wide range of brake pads available, and others may work well with your wheels but it is important that you test the suitability of any pad before racing or braking hard.

Q: Are Rolf Prima wheels approved by the UCI?
A: Like many manufacturers, certain Rolf Prima wheels match UCI's description of "Non-standard wheels". As such, we have performed the UCI required tests and the approved wheels are listed on the UCI website. The only Rolf Prima wheels not legal for UCI mass start events (road races) are the TT and Disc however these can still be used in time trials. The TT and Disc are not legal only because they do not have the minimum 12 spokes that the UCI requires.

Q: Are Rolf Prima wheels approved by the ITU?
A: The ITU is adopting the UCI's rules regarding wheels as of January 1, 2010. Like many manufacturers, certain Rolf Prima wheels match ITU/UCI's description of "Non-standard wheels". As such, we have performed the ITU/UCI required tests and the approved wheels are listed on the UCI website. The only Rolf Prima wheels not legal for draft-legal ITU events are the TT and Disc. These can still be used in all other forms of triathlon. The TT and Disc are not legal only because they do not have the minimum 12 spokes that the ITU/UCI requires.

Q: Does Rolf Prima make 650c wheels ?
A: Yes. The Elan, Dauphine and TdF58 models are available in both 650c and 700c wheel sizes.

Q: Where are Rolf Prima wheels built?
A: All Rolf Prima wheels are hand built in our Eugene, Oregon facility by our skilled employees.

Q: What bearings sizes are in my hubs?
A: Here is a breakdown that shows which bearings are in your wheel. click here

Q: What wheel is for me?
A: Here is a breakdown that helps show which wheel is best going to fit your needs. click here

Q: Does Rolf Prima offer a PowerTap wheel?
A: Yes - you can order the Vigor SL, Vigor RS or TdF38 with a Pro+ or SL+ PowerTap hub. Contact us or your local Rolf Prima dealer for further details.

Q: Can I get replacement decals for my Rolf Prima wheel?
A: Yes, replacement decals can be purchased through your local shop or directly from Rolf Prima.

Q: Are ceramic bearings offered in Rolf Prima wheels?
A: Yes, you can order your Rolf Prima wheels with ceramic bearings or upgrade your current Rolf Prima wheels with ceramic bearings at anytime. Read more about bearing upgrades on our Factory Service page.

Q: Are there tire size recommendations?
A: Rolf Prima wheels can be used with tire widths ranging from 20C - 28C. Wider tires may be able to be used safely but they are not recommended.

Q: What length presta valve should I use?
A: Our lower profile wheels: Elan, Dauphine, Aspin and Aspin SL can use 35mm or longer. Our deep alloy rims like the Vigor, Echelon, Echelon SL, Cross, Tandem and P-Town will work with a 48mm or longer. Our deep section carbon wheels come with valve extenders for inflating however by using a 60mm valve, the TdF38 clincher can be used without a valve extender.

Q: Why can't Rolf Prima service older, Trek-built, "Rolf Wheels" branded wheels?
A: Rolf Prima wheels are manufactured with different components and specification than the old "Rolf Wheels" branded wheels manufactured under license by Trek Bicycle Corporation. Rolf Prima is a separate entity and has no affiliation with Trek. Trek is servicing all warranties related to the "Rolf Wheels" brand manufactured through December 31, 2001. For more information on servicing "Rolf Wheels" branded products click here.

Q: Do you offer a crash/rebuild program?
A: Yes. To ensure every Rolf Prima wheel is built to the same specifications, we perform all rebuilds at our Eugene, Oregon facility - usually within 48 hours of receiving them. You can download the wheel service form here.

Q: What can I do if I crash and my wheels get damaged?
A: We can often rebuild any crashed wheel, by using your existing hub and rebuilding it with a new rim, spokes and nipples. It is more cost effective to rebuild a wheel, than to replace it and with our 48hr turn around policy you are not without your wheel for long. Read more about our factory service options here.

Q: Where can I get replacement parts for my Rolf Prima wheel?
A: Any professional bicycle shop can order replacement parts to service Rolf Prima wheels. If you don't have a shop near you, check our online store for replacement parts or contact us directly.

Q: What's the warranty on Rolf Prima wheels?
A: One (1) year protection from the date of purchase against defects in materials and workmanship. For more details on our warranty, click here.

Q: If my wheel comes out of true, what should I do?
A: Rolf Prima wheels with internal nipples are not any harder to true than a traditionally laced wheel. Actually they are easier because of the paired spokes. You will need to remove the tire and rim strip to true them and that is part of the reason we put so much time into our build process. Our build process eliminates the normal "break-in" period most wheels have. You won't be constantly truing them - in fact we hear from many customers that they have never had to true them.

Q: If I break a spoke out on a ride, can I ride home?
A: Yes. In most cases by opening your brake pads you can ride home or to a bike shop for repair.

Q: If I break a spoke, does it have to be replaced with the exact same type of spoke?
A: We do suggest replacing a broken spoke with a Rolf Prima spec'd spoke, however in a pinch or emergency, a standard J-bend spoke of the right length can be used.

Q: My wheel is making a noise
A: This is complicated since there are many parts on a bike. The first, and most important, thing to do is to isolate the noise. Try changing wheels on the bike; if the noise is still there with a different set of wheels, the noise is not coming from the wheels (change only one wheel at a time so you know if it was front or rear). Try the wheels on another bike- is the same noise there? Once you have determined the noise is coming from the wheel and you have determined which one (front or rear) here are some common items to check. Note that below is a list of the top contenders. It could be something else.

One of the most common causes of noise coming from a wheel is a rattling valve stem. Sounds crazy, but it is. If the valve stem is unthreaded, try placing a small piece of tape around the valve stem where it enters the rim. This will dampen the noise. If you have a threaded valve stem; thread the small nut that came with your tube onto the valve after the tube is installed. Tighten lightly.
Not the valve stem? It could be worn bearings. Remove the wheels from the bike and spin the axle in your fingers. Is it rough or noisy? If so, it is time for a bearing replacement. Contact your local bike shop or view options on our Factory Service page.
If you determine it is the rear wheel and it is making a creaking noise, it may be a dry axle. Follow the instructions in the Service Manual for disassembling the hub. Apply oil and reassemble.

Q: What size spoke wrench do I need for Rolf Prima wheels?
A: All Rolf Prima wheels use a 3/16 spoke wrench for truing. Specific spoke wrenches for Rolf Prima wheels can be purchased from the factory. Rolf Prima store

Q: Do my Rolf Prima wheels have to come back to the factory for all service needs?
A: No, the only service we require that is performed at the factory is a full wheel rebuild. Any routine service can be performed at your local shop.

Q: What type of grease do you recommend for hub service?
A: Standard white lithium grease works well especially if cut with a small amount of chain oil.