On this page:
- Can I get custom coloured decals?
- Are the decals stickers that I can change?
- What’s the wait time on custom made Nextie rims?
- What’s the difference between non-Premium and Premium Series rims?
- Are Nextie rims open mold construction?
- What are asymmetrical rims and what are the benefits?
- What’s the difference between weaves UD, 3K and 12K?
- How much spoke tension should I use?
- What is ERD (Effective Rim Diameter)?
- Is there a weight limit on your rims or wheels?
Can I get custom coloured decals?
We offer any decal colour from the Pantone colour chart… www.pantonecolors.org
If you know your exact colour code we can match that to your bike. There are 4 decal styles:
- Outline only
- Solid with outline (additional cost)
- 2 colour fade/blend (additional cost)
They are a thin water transfer decal that’s applied before the final clear coat giving a professional, never peal or fade permanent finish not found on many carbon rims.
PremiumMTB valve logo decal also available as on option when purchasing.
Please contact us with your requests and we will be happy to assist.
Are the decals stickers that I can change?
The decals are not stickers. It’s a colored ink water transfer which is applied before the final clear coating.
Once the decals are applied on rims , they can not be removed normally, unless you use sand paper to sand off the decals, which would also remove the clear coating.
If you do not have a professional painting workshop who could help locally, it’s not suggested that customers apply or remove the decals by themselves. This also requires de-lacing and then rebuilding your wheelset. Please choose your decal colours carefully as they are permanent.
What’s the wait time on custom made Nextie rims?
Because of the numerous rim, spoke hole counts, hub variations, hub colours, and custom rim and wheelbuild finishes available, almost all of our rims and wheelsets are made / built to order and shipped direct from Nextie and PremiumMTB.
Total delivery time is 3-4 weeks.
10-14 days rim manufacturing process
2-3 days paint and decal process
1-7 days wheelset build process
7-14 days international shipping to New Zealand / Australia.. Other international destinations may vary slightly .
3-4 days shipping within Australia…….
From time to time Nextie and PremiumMTB may hold some models and styles in stock ready to ship immediately
What’s the difference between non Premium and Premium Series rims?
- Premium rims are manufactured with T700 + T800 carbon fibre, with an improved resin to carbon ratio.
- Combination of 20% T800 + 80% T700 carbon fibre to optimise rigidity (T800) with resiliency (T700).
- The carbon fibre layers are laid at angles of 30 degrees and 60 degrees. This is a more complex process, however we have found it achieves improvements in both stiffness and strength. Our testing has shown an improvement in impact resistance compared the non premium layup of 45 degrees.
- A single mold was produced to lay up the spoke bed wall. The flatness of the rim channel surface is significantly improved, which makes the thickness at each spoke hole completely consistent. Also, it effectively prevents the carbon loop of the spoke hole wall from shifting.
- The flatness and roundness are controlled to +/-0.15mm, compared to +/-0.2mm compared to non premium rims.
- Thicker rim lip provides greater impact resistance.
- Three year warranty.
Are Nextie rims open mold construction?
Contrary to rumors about a lot of Chinese carbon brands, Nextie have 28 of their own private molds and designs to date while constantly striving to make new designs and improving on current rims. Nextie are a bicycle carbon fibre design company who then contract local factories to manufacture their rim designs for their consumers.
- Nextie has designed and engineered almost all of their own carbon fibre rim molds. Nextie has a proprietary carbon fibre layup process that has been developed to add ride and feel characteristics.
- Carbon fibre can be engineered to do many things – it does not always have to be lighter and stiffer. Nextie engineer their layup to offer different weaves of Carbon fibre to increase strength, and be much stiffer than aluminium rims, but also have a certain amount of give to decrease rigidity in the ride feel.
- Every piece of their Toray T700 carbon fibre (as well as T800 in Premium rims) is specifically cut to fit into the layup process so that it behaves and performs the way they intended the end product to be.
- Prepreg carbon cloth is used to provide a consistent carbon to resin ration in the manufacturing process. This is done so that you don’t end up with resin poor areas, and don’t have to solely rely on vacuum bagging to remove excess resin.
- The nipple bed area is made with a unique process that allows layers to be built up nice and thick, but at the same time remain even and without voids.
- After the layups are completed, an airbag is inflated inside the rim and the mold is heated to a specific and constant temperature. The heat is what cures the resin and makes the carbon fibre stiff. The airbag is inflated to apply constant pressure and ensures the resin flows evenly through the carbon fibre as it cures.
- When the rim is cured, the mold is cooled down and opened up. A small hole is made to remove the airbag. This hole is later enlarged and becomes one of the spoke holes.
- The rim holes are drilled and then hand finishing is required. Quality control is performed at this point. The thin water decals are applied. Then the rim is sprayed with a clear gloss or matte clear finish.
- The rims are weighed. The serial number with the production batch number is also put on the center channel of the rim. Each rim is put into its own soft foam package.
What are asymmetrical rims and what are the benefits?
Some Nextie rims feature an asymmetrical profile. The asymmetrical design, and the holes for the nipples are drilled in the center of that profile where the nipple bed is at it’s thickest. The end result is nipple holes that are offset from the rims center line. This is a custom made mold, we didn’t just drill the holes offset. They were designed with a specific offset in mind.
On average asymmetrical rims improved total radial tension by 10%, and improves the low tension side of the wheel by 25%. This may not sound like a huge difference to some, but it has many advantages and it is a significant improvement given the context. Lower tension spokes under approximately 75 kg/f on the low tension side of the wheel can loosen off much easier than higher tension spokes.
Although spoke tension should be quite even all the way around, the reality is that wheel builders also have to worry about roundness and wheel dish. This means that certain spokes within the wheel could be different from the others on the same side of the wheel, and this tends to worsen over the life of the wheel.
Having more even spoke tension from left to right will create a more stable and reliable wheel with higher net spoke tension. You can also achieve more stiffness with an asymmetrical rim if desired. You will have a greater operating range of spoke tension because the low tension side won’t be so dramatically different from the high tension side. For instance, with some hubs you will have to take the high tension side of the wheel towards the high end of the tension spectrum simply because the low tension side is quite low. Some wheel builders would even make the wheel out of dish in order to get the low tension spokes more reasonable.
What’s the difference between weaves UD, 3K and 12K?
UD, 3K and 12K are just three different weaving types of carbon fibres that are widely used for manufacturing bicycle products.
There are lots of debates online about the difference between carbon weaves of UD, 3K and 12K.
UD is short for Uni-Directional, the fibres of UD weave are arranged in one direction, which is the most frequently used to make carbon fibre products. 3K means there are 3,000 filaments per “tow”, 12K means there are 12,000. 3K weave carbon fibre is most well known.
The different weaves result in different appearance and performance.
The illustration is as below, it shows different appearances of the weaves, and bicycle rims in different weaves.
UD weave looks like plain black. Crossed 12K weave pattern is 4 times larger than 3K weave.
Customers may also know 1K, 6K, 18K and 24K. They are also woven/crossed, just in different sizes of pattern.
Rims with different weaves only differ in the outer layer. Regardless of the style on the outside of the rim, inside all rims are mainly UD carbon fibre cloth.
However, they still have some differences in performance.
Carbon fibre is a composite material of carbon fibre cloth and resin that bonds the fibres, and 3K carbon fibre is woven like a web. So, 3K carbon fibres has a function like a web to filter redundant resin inside of carbon fibre products.
When manufacturing bicycle rims, we usually add a layer of 3K carbon fibres inside of rim channel to filter redundant resin, to balance the content rate of carbon fibre and resin material. Another advantage of 3K carbon fibre is that it can protect the spoke hole from flaking when drilling it.
The advantage of UD carbon fibre is strength. That’s why Nextie makes all rims with UD fibres for support.
There is a theory that woven fibres like 3K as the outer layer on a rim has a better impact strength, but we haven’t seen any real world experience or tests which could support this standpoint. As all presented above, no matter UD 3K or 12K weave rims, inside are mainly composed of UD fibres, and a layer of 3K fibres.
How much spoke tension should I use?
Although the maximum spoke tension of our rims is 150kgf, we do not recommend to lace your wheelset so tight.
A. Tension for “transportation riders” (Comfort)
B. Tension for “enthusiast riders” (Balance)
C. Tension for “professional riders” (Performance)
What is ERD (Effective Rim Diameter)?
ERD, short for Effective Rim Diameter, is the rim diameter measured at the nipple seats in the spoke holes, plus the thickness of the two nipple heads.
It’s used to calculate spoke length when preparing to build a wheel. Nextie’s ERD is extremely accurate
Is there a weight limit on your rims or wheels?
Yes…. 120kg for our XC rims up to 180kg for our Enduro / Downhill rims to 200kg for our Fatbike rims (static weights)