Installing Upgrade Tokens to Alter Progressivity in Rear Shocks

You install upgrade tokens in your rear shock’s air chamber to make the spring more progressive and boost bottom-out resistance by about 10% per token. For your weight and riding style-say, 175 lbs charging technical descents-three tokens in a Fox DPS shock give firm end-stroke support without harshness. Set sag at 25% (around 108 PSI) for balanced performance, maintaining small-bump compliance and control. Test rides confirm better rock garden composure and cornering smoothness. There’s more to fine-tuning your setup just ahead.

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Notable Insights

  • Upgrade tokens reduce air chamber volume to increase bottom-out resistance and shock progressivity.
  • Insert tokens into the rear shock’s air can after releasing pressure and removing the air cap.
  • Use 1–2 tokens for lighter riders, 2–3 for average weight, and 3–4 for aggressive terrain.
  • Maintain 25% sag at 108 PSI for optimal performance after installing tokens.
  • Test ride to evaluate end-stroke support and ensure small bump sensitivity remains intact.

What Are Upgrade Tokens and How Do They Work

While your rear shock already does a lot of heavy lifting on rough trails, slipping in an upgrade token can sharpen its response when you need it most. These small plastic spacers fit inside your rear shock’s air chamber, reducing volume and helping your suspension system resist bottoming out. By adding upgrade tokens, you make the air spring more progressive, giving a firmer feel in the last third of travel-ideal for aggressive runs. Testers report about a 10% improvement in bottom-out resistance with just one token. Most shocks accept up to three, depending on your weight and riding style. After installing upgrade tokens, always re-inflate your rear shock-say, to 108 PSI for 25% sag-to keep suspension performance accurate and consistent. It’s a simple tweak that fine-tunes how your bike handles chunky terrain, making your ride more controlled without extra effort.

How Upgrade Tokens Improve Shock Progressivity

Because your rear shock’s air spring has to balance responsiveness with control, slipping in upgrade tokens fine-tunes its progressivity by reducing the air chamber’s volume, making the suspension ramp up more firmly at the end of its travel. You’ll notice the difference when hitting big drops or rough descents-each token boosts resistance to bottoming out, adding about 10% more support during aggressive riding, including the type of hard-charging runs where control matters most. The shock stays supple early in the stroke for small bump sensitivity, yet feels more confident on harsh impacts. At 108 PSI with 25% sag, the curve improves dramatically, especially under combined rider and gear weight. Token count changes the feel, but maximum capacity depends on your shock model and design, so check compatibility. You’re not just adjusting stiffness-you’re reshaping how the suspension reacts, trail after trail.

Choose the Right Number of Tokens for Your Weight and Ride Style

You’re in control of how your bike handles big hits and rough terrain, and choosing the right number of upgrade tokens starts with matching them to your weight and how you ride. Your rider weight directly influences token count-under 150 lbs? Stick with 1–2 tokens for a plush initial stroke and better small-bump compliance. If you’re 160–180 lbs, 2–3 tokens deliver ideal bottom-out resistance without harshness. Aggressive riding style on technical terrain type demands more progressivity, so go with 3–4 tokens to survive hard landings and fast descents. Most modern air shocks support up to 4 tokens before turning stiff. Pair your token choice with proper sag-25% at 108 PSI-for a 10% real-world performance gain. Match tokens to your rider weight, riding style, and terrain type for sharper, more confident control.

How to Install Upgrade Tokens in Your Rear Shock

Once you’ve picked the right number of upgrade tokens for your weight and ride style, installing them is a straightforward process that fine-tunes your shock’s performance. Begin with shock disassembly by carefully releasing air and removing the air can. Inside, you’ll handle token placement by stacking the small plastic discs into the air chamber-up to your model’s max, usually three or four. These air chamber mods reduce volume, increasing bottom-out resistance. Testers saw a 10% improvement in progressivity, with fewer harsh hits on chunky descents. After inserting tokens, reassemble the air can, then reinflate to your recommended pressure-like 108 PSI for many models. The result? A plusher top-out and firmer end-stroke, ideal for aggressive trail riding. Just don’t skip setting sag to 25% after-you’ll dial in the full benefit.

Test Your Ride and Set Sag for Optimal Performance

While the upgraded tokens reshape your shock’s personality, you’ve got to dial in the details to feel the full benefit, starting with setting sag at 25% of total travel-around 108 PSI for most riders, right where testing showed the sweet spot. Proper suspension tuning guarantees full travel use without harsh bottoming. After installing tokens, test ride over varied terrain to assess ride feedback and terrain adaptation. Check that the mid-stroke stays supple and end-stroke support increases. Recheck sag post-ride-rider weight shifts can alter the ideal 25%.

Test ConditionResult
Rock gardens10% less bottoming
Steep descentsImproved control
Flat cornersSmooth mid-stroke
Small bumpsNo harsh initial feel

On a final note

You’ve got the tools to fine-tune your ride, and adding upgrade tokens is a smart, simple move. Sliding in 1–3 tokens sharpens bottom-out resistance, especially if you’re over 160 lbs or hitting aggressive trails. Testers running 30% sag noticed better mid-stroke support on rock gardens and drops. Pair token tweaks with proper air pressure, and your shock stays plush yet controlled. It’s precise, measurable improvement-no guesswork.

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