At Scribe, we challenge, test and obsess over the smallest of details to explore what's possible with product development, and to make sure we bring you the best product possible. The below provides a snapshot of the level we go too...
Scribe Five4 hubs (Ratchet Drive System) - Exclusive to Scribe, these hubs are lightning fast with 6.6 degree engagement. Included with all of our performance wheels, this is a super-responsive 54-tooth ratchet system that offers almost instant drive when the power goes down.
The engagement angle is how much the free hub rotates before power is transferred to the rear wheel. The smaller the engagement, the faster the wheel set will respond. However, too little angle means there's not enough contact surface for loading.
The biggest advantage of a Ratchet Drive System is that ratchet faces engage simultaneously, every time, which helps increase durability.
Check Scribe Five4 blog for more info.
Rim Technology (Carbon and Alloy)
Chemically Enhanced Resins - As Resin affects the strength, weight, and thermal ability of carbon rims, it’s important to get the right mix; for the purpose. For example, as Carbon rim brakes have a friction track for braking, the carbon surface can be exposed too much higher temperatures when compared with disc rims, and therefore needs increased heat resistance - without adding too much weight, of course.
For the Scribe wheel range, we use chemically enhanced Resin mixes that are specifically designed for purpose. We use a special Disc-Specific resin for carbon disc brakes with a High Glass Tension (TG) (up to 180º), and an upgraded Super-High TG mix (up to 240º) for carbon rim brakes. Paired with our own Scribe pads (compound designed for our rims), you can ride hard, knowing you can brake with confidence.
Image 1: Brake Testing - Max Heat: Independent rim wall heat testing to establish Max temperature resistance (240º). Note - Scribe specific brake pad used.
Image 2: Illustration of heat generation on rim side walls
High Tier Carbon Fibre with Spoke Hole Reinforcement - At Scribe, we only use Japanese Toray, high filament (12k / 18k), carbon fibre for our carbon wheel range to make sure all carbon wheels with our logo; are super-light in weight, and incredibly strong. This includes extra reinforcement at spoke holes.
Image 3: X-Ray QC check - Phase 1 QC check for carbon reinforcement at spoke holes
Image 4 - FEA illustration for spoke loading: Carbon rim test for single spoke loading before and after loading [Scribe carbon rims have been Lab tested to 280 kgf/ spoke hole]
*Note Spoke reinforcement helping to distribute load away from nipple anchor point (green in second image)
Tubeless Ready Technology - Every Scribe wheel comes as tubeless ready. This includes (i) Strengthened side walls, (ii) Bead lock rim beds (so you can can low pressure without worrying about the tyre rolling), (iii) Hooked rim edge to anchor tyre bead, (iv) Ramped wells for easy tyre fitment. *Tubeless tape fitted as standard.
Wide, and Super wide (Wide+) Rim designs - All of our rims are wide in design with internal widths ranging from 19 - 21mm. Wider rims offer lower rolling resistance, better aerodynamics, a more comfortable ride, and better handling. Most of these advantages come from increased air volume due to a wider rim base. A 23mm tyre for example on a 19mm rim holds about 720,000 cubic mm of air. The same tyre on a 24mm rim holds about 915,000 cubic mm of air. An increase of ~27%. The increase in air volume means you can run much lower pressures without the risk of pinch flat. As tyres are more flexible with lower pressures, you will roll over the road smoothly, rather than bounce over them (even at a small level), which lowers rolling resistance - giving you free speed! The lower air pressures also make the ride more comfortable.
Hardened, Super lightweight Alloy - light enough to spin your way to the top, but strong enough to take impacts. Scribe alloy rims go through extreme heat treatment processes to produce exceptionally strong, yet lightweight rims. As weight generally slows wheels down (especially when weight is far away from the hub, centre point), this means we can build you incredibly fast responding hoops, with low weights.
Spokes and Nipples
Sapim spokes - Produced from high-tensile, fatigue-resistant 18/8 stainless steel, Sapim spokes produce some of the highest fatigue tested results out there. Used on most of our range, the CX-Ray is almost as light as Titanium, more long lasting than any other spoke on the market, and it's considered to be the best aerodynamic eliptic spoke available.
Nipple choice - Ever get a locked, corroded Alloy nipple that won't budge? Yeah, us too. Often overlooked, using the right nipple can significantly add to the performance of your wheel set. Depending on the purpose of wheel, we use Brass (for wheels exposed to high-fatigue, or corrosive conditions such as wet/salty winter roads), or Alloy nipples for performance builds. Check out our 365 models.
Bearings and Grease
Bearings and Grease - Bearings are an essential component for every wheel set, and we have spared no expense to get the right bearings & grease for the purpose. All of our wheels come with 6x sealed stainless steel bearings; 4x in the rear, and 2x in the front. For Scribe performance wheel sets, we give customers the option to run non-contact seals (with light, super fast grease - not good in wet), and for wheels designed for all-season riding, we use contact seals with Scribe Aqua grease (water tight bearings, and water repellent grease - still fast and will stand the test of time).
Exceptionally High QC Testing
Product Testing - Every Scribe wheel set has been rigorously fatigue tested to the point of breaking to make sure they soar past industry standards, and to ensure you receive the ultimate in durability. As riders ourselves, we know where the limits of modern cycling components reside, and we are successfully pushing the limits of cycling performance to new levels.
Video 1: Prototype Carbon (Wide+ 32mm with 21mm internal) and Lightweight Disc hub Extreme Fatigue test: (4 times ISO standard) - 3 Million cobbles (!) (10mm in height), 64kg load (for single wheel), 25 Kph. *23mm Vittoria Rubino Pro tyre used for testing at 90% max inflation
If you have any questions at all on Scribe product, don't hesitate to give us a call, click the Green chat button, or just drop us an email as we’d be glad to help - firstname.lastname@example.org