TableTennisDNA

Sauer & Tröger · Inverted

Secret Flow Chop

A highly controlled, grippy inverted rubber developed as a spin-oriented forehand complement for pips and anti players.

Secret Flow Chop combines a soft, grippy topsheet with a medium-hard SC sponge. It offers strong topspin against backspin, secure chopping and unusually high control across multiple sponge thicknesses. Its spin is produced by the rubber itself, not returned rotation.

Also written as Secret Flow · Secret Flow Chop Pimples Inside · Secret Flow Chop Inverted · Sauer & Tröger Secret Flow Chop

ALLOFF-BeginnerIntermediateAdvanced

Sauer & Tröger product photography is not licensed for TTDNA, so TTDNA renders its own neutral topsheet visualisation generated from verified construction data.

Official Sauer & Tröger data

CategoryInverted
SurfaceGrippy, non-tacky
SpongeSC Sponge (Orange)
Sponge hardnessMedium
Thicknesses1.0 mm · 1.5 mm · 1.8 mm · 2.1 mm
ColoursRed · Black
Competition statusListed for competition play
Approval checked3 August 2026
Approval sourceSauer & Tröger catalogue
PriceVaries by retailer

Competition approval is only shown once it has been checked against the current ITTF list of authorised racket coverings. A shop listing on its own is not treated as proof, and an unverified covering is never shown as illegal. No reliable official Sauer & Tröger list price is published per region, so no price is shown rather than an invented one.

Construction characteristics

  • Soft grippy topsheet
  • Medium-hard orange SC sponge
  • Pre-tensioned construction
  • Designed as a forehand complement for pips players
Play stylesControlled spin · Topspin against backspin · Defensive chop · All-round attack
Recommended sideForehand · Backhand
Throw angleMedium-High

TTDNA ratings

Speed78
Spin91
Control92
Power73
Grip68
Tackiness0
Arc75
Catapult53
Throw angle74
Elastic65
Spin sensitivity73
Short game71
Blocking75
Backhand flip83
Counterloop85
Opening loop87
Chop64
Serve78
Service receive83
Difficulty55
Beginner friendly53
Durability75

TTDNA values are TTDNA's own editorially normalised 0–100 ratings. They are never an official Sauer & Tröger rating and never a conversion of the Sauer & Tröger manufacturer scale. Spin reversal is the returned rotation of the incoming ball. It is stored separately from the TTDNA spin rating, which measures the rubber's own spin production.

Strengths

  • Very high control
  • Strong mechanical grip
  • Excellent serve and receive
  • Good topspin against backspin
  • Wide thickness range
  • Suitable for mixed defensive and offensive play

Weaknesses

  • Lower top-end speed than modern offensive tensors
  • High incoming-spin sensitivity compared with pips
  • Not designed for maximum counterloop power

Best for

  • Forehand side of pips setups
  • Modern defenders
  • Control-oriented topspin players
  • Players changing between defence and attack

Not ideal for

  • Maximum-speed attackers
  • Players wanting a low-friction surface

Data confidence

ConfidenceHigh
ReferenceSauer & Tröger official product page
Naming and classificationPimples Inside means inverted rubber, so this model is classified as inverted and never returned for pips-out filters. The manufacturer's combined label Effect/disruptive effect is ambiguous: the original label and value are stored as an official metric only, and never as the pips disruption rating.
Source prioritysauer_troeger_official_product_page → sauer_troeger_official_rubber_collection → current_ittf_larc_approval_list → official_downloadable_product_material → official_regional_page → specialist_retailer → independent_expert_review → community_feedback
Last checked3 August 2026

Variants and configurations

4 variants

Colour, thickness and configuration are variants of one model — never separate products. Colour never changes a rating, MAX and OX stay qualitative labels, and OX carries no sponge hardness.

Black · Red · 1.0 mm

Standard · Sponged · Medium

Speed 74 · Spin 88 · Control 96

Black · Red · 1.5 mm

Standard · Sponged · Medium

Speed 78 · Spin 91 · Control 92

Black · Red · 1.8 mm

Standard · Sponged · Medium

Speed 78 · Spin 91 · Control 92

Black · Red · 2.1 mm

Standard · Sponged · Medium

Speed 80 · Spin 92 · Control 90

TTDNA ratings

Speed78
Spin91
Control92
Power70
Grip68
Tackiness0
Arc75
Catapult55
Throw angle75
Elastic66
Spin sensitivity73
Short game71
Blocking77
Backhand flip83
Counterloop85
Opening loop87
Chop64
Serve78
Service receive83
Difficulty53
Beginner friendly55
Durability75

Known users

Offensive club and league players who want a spin-first inverted sheet on the forehand or backhand.

Sauer & Tröger publishes no athlete roster for this sheet, so TTDNA shows the player profile it is built for instead of invented names.

11 Sauer & Tröger models in TTDNA · Compare the range