The Pain ForecastNational climbing pain service
FTP420 WSystem73 kgGear41×33Ratio1.24
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Yes
20%
Unbreakable
You hold 8.0 km/h up to 20%+ and stay under 420 W. The table cracks before you do. Go find a real wall.
Target speed (km/h)8.0 km/h
rpm →grade ↓3035404550556065707580859095100105110115120125130135140145150
4.85.66.47.17.98.79.510.311.111.912.713.514.315.115.916.717.518.319.119.820.621.422.223.023.8
0%1213151720222528313438424651566167737986
1%293236404347525661667177838995102110117125134
2%47515662677379859197104112119127135143152161171181
3%647077849198105113121129138146155165174184195206217228
4%818997106114123132141151161171181192203214225237250263276
5%99108118128138148159170181192204216228240253267280294308323
6%116127139150162174186198211224237251264278293308323338354371
7%133146159172185199213227241255270285301316332349365383400418
8%151165180194209224240255271287303320337354372390408427446465
9%168184200216233250266284301319337355373392411431451471492513
10%185203221239257275293312331350370389410430451472493515537560
11%203222241261280300320340361382403424446468490513536559583607
12%220241262283304325347369391413436459482506530554579604629655
13%238260282305328351374397421445469494519544569595621648675702
14%255279303327351376401426451477502528555582609636664692721750
15%272298323349375401428454481508536563591620648677707736766797
16%290317344371399426454483511540569598628657688718749780812844
17%307336364393422452481511541571602633664695727759792825858892
18%324355385415446477508539571603635667700733767800834869904939
19%342374405438470502535568601634668702736771806841877913950986
20%3593934264604935275625966316667017377738098468829209579951034
Sustainable≤ FTP
On the rivet100–110%
Cracked> 110%
Out of reachslower than target

Rough mathematical estimates from your inputs — real-world watts vary with wind, drafting, fatigue and surface. Forecasts, not guarantees.