RingCalc™Version 1
B-200 Balancing Ring · TTB Method · mixed-screw first-pass solver
RingCalc™ Version 1 · rev 0.49
Inputs
First: Wheel information
Data entry: in mm
Everything that spins that isn't the wheel: BS-8 arbor, Sopko adapter, balancing ring, screws. Weigh once, reuse.
✓ Flip Checked!
Second: Use TTB Method and report
Read every hole at the 12-o'clock (top) position.
Let the wheel settle. The light side floats to the top; read the hole at 12 o'clock. This tells the tool which end of the axis is light — a rough read is fine.
Set the wheel rocking. At each reversal (the instant it stops and reverses), read the hole at 12 o'clock — one per side. These fix the balance axis precisely.
Time one COMPLETE cycle (a full period): start counting at a reversal point, let the wheel swing all the way over and come all the way back to that same reversal point. That is one period — not the single sweep from one reversal to the other (that is only half). Timing the full cycle cancels out any stand tilt.
Goal: period > 25 s. Goal range 25–60 s; higher is a tighter balance.
Screw library
The optimizer mixes any screws in the library. Click a name to see it highlighted. Colors are chosen to be distinguishable with red-green color vision. Set your screw selection before calculating.
Add / remove screws
Third: Calculate screw locations
Best balance Fewest screws
g·in fewest screws that stay within this of best balance
Results
Ring map
Setscrew & logo at top (light side). Hole 0 opposite, at bottom. Filled holes are colored by screw type. The arrow points to the light side — where correction weight goes — and its length shows the residual imbalance (g·in).
Prescription
Fill in the wheel, the reversal holes, the light-side hole, and the period — then calculate.
What do these numbers mean?

Every screw you place makes a moment — its mass multiplied by the ring's bolt-circle radius (its distance from center). Moments are measured in gram-inches (g·in). The goal is for the total moment of all your screws to point at the light side and equal the wheel's imbalance, so the two cancel.

First pass (empty ring):

  • Residual U — the wheel's imbalance, computed from the period you timed. This is the moment you need to cancel.
  • Correction — the total moment of the screws the tool is prescribing. On a good solution this closely matches Residual U.
  • Delta (miss) — how far the prescribed set falls short of perfectly cancelling the imbalance. Smaller is better; it's limited by the discrete screw sizes and hole positions.

Fine-tuning pass (screws already installed): here the numbers describe an adjustment to what's already on the ring, so they read differently:

  • Residual U — the imbalance from your new reading: what's still left after the screws already installed. This is what this pass is correcting.
  • Added this pass — the moment of just the changes this pass (screws added, minus any removed). This is the small adjustment, and it should roughly match the new Residual U. This is the number that answers "does the new weight make sense?" — it reflects only what you're changing now, not everything on the ring.
  • Total on ring — the moment of every screw on the ring after this pass (the running total, which accumulates across passes). This is usually the largest number, because it includes all the correction from earlier passes. It is not the weight you add this pass.
  • Delta (miss) — how far the full set (total) is from perfectly cancelling the imbalance after this pass.

Example: if Residual U is 0.31, Added this pass is ~0.26 (one small screw), Total on ring is 0.81, and Delta is 0.06 — that's a healthy fine-tune: a small addition trims the last bit of imbalance, the running total reflects everything placed so far, and the miss is tiny.

"RingCalc," "Time To Balance" & "TTB Method" are trademarks of Kinetic Precision
© 2026 Kinetic Precision. All Rights Reserved.
Flip Check

Before balancing, confirm the ring can actually pull the wheel into balance. This is the Flip Test: a quick, measurement-free go/no-go check.

1 · Wheel at rest — light side up

Properly mount the wheel on the hub, if not already done. If you are mounting a wheel onto the hub just prior to this test, it is recommended that you true the wheel on your grinder first. This removes any gross concentricity errors from the manufacturing process. Insert the arbor, place on the balancing stand, and let it settle to find the light side at 12-o'clock. Mark the light side with a pencil mark on the side. Mount the B-200 Balancing Ring on the hub with the logo and the mounting screw aligned with the light-side mark. Replace the wheel onto the balancing stand. If it flips, you're successful. If not, continue.

2 · Still no flip? Load the light side

If the ring alone didn't flip it, fill the six holes nearest the top — E, F, G, 5, 6, 7 — with your heaviest available screws, split around the mounting screw. This piles correction weight onto the light side.

If the wheel does NOT flip, change the ring mounting screws from a setscrew to a socket-head cap screw (SHCS). This adds more weight, and is a last-ditch effort to show that you are able to balance this wheel. If you have not trued the wheel yet, that may also be a problem.

If the wheel now flips — the light side swings down to become the new heavy side — the correction you can apply brackets the correction you need. You're within the ring's range. Remove the screws you added for this test. Proceed to balancing.

Did the wheel flip?
Try truing your wheel first, then return for the balancing process. Make sure the truing pass gets 100% coverage.
RingCalc™ · Bench Sheet
B-200 Balancing Ring · TTB Method
Kinetic Precision
Date
Operator
Wheel ID / spec
Goal period (s)
Wheel dia (in)
Wheel mass (g)
Arbor+adapter+ring (g)
Flip check ✓
M = mounting setscrew (top, 12 o'clock) — reading position only, never a weight station. Mark the holes you fill. 15 weight holes at 22.5° spacing, bolt circle R0.950″.
# Light hole Rev A Rev B Period T (s) Screws installed (hole : type) Period after (s)
Reading convention — Read every hole at the 12-o'clock (top) position. At rest the light side floats to the top: that hole is the light-side reading. Set the wheel rocking; at each reversal (the instant it stops and reverses) read the hole at 12 o'clock — one per side. Period = one COMPLETE cycle: start timing at a reversal, let it swing over and return all the way back to that same reversal point (not the single sweep between the two reversals — that is only half). The full cycle cancels stand tilt. Install the prescribed screws, run TTB again, and record the new period. Repeat until the period clears the goal.
"RingCalc," "Time To Balance" & "TTB Method" are trademarks of Kinetic Precision · © 2026 Kinetic Precision. All Rights Reserved.