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Thömus Lightrider E1
Thömus

Lightrider E1 2022

DiscontinuedLightweight · TrailLegacy · 0/10iFreshness 0/10
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.

Motor
Shimano STEPS E8000 · 70Nm · 250W
Battery
Shimano BT-E8020 · 504Wh
Travel F/R
150/150mm
Wheels
27.5F / 27.5R
Frame
Full carbon
Weight
Price
£0
View the Thömus Lightrider E1 on Thömus’s site
Thömus Lightrider E1 2022
EMTB Forums verdict

The Lightrider E1 was Thömus's original full-power eMTB: a full carbon 150 mm trail and enduro machine built around the Shimano STEPS E8000 motor (70 Nm, 250 W nominal) with a removable 504 Wh Shimano BT-E8020 battery hidden in the down tube. Sold direct in Switzerland through the Thömus configurator, the 2022 catalogue listed five base builds (TIC SLX, TIC XT, TIC XT Di2, TIC XTR and TIC XTR Di2) from CHF 5'490, each freely customisable, with 130 mm or 150 mm travel and 27.5in-plus or 29in wheel choices documented at launch. It was never officially sold in the UK, so no GBP pricing exists.

The geometry is agile rather than long and slack: 440 mm chainstays across all three sizes (S, M, L), a head angle of 66.9 degrees in the Trail setting or 66.0 degrees in the All Mountain setting, and reach from 411 mm to 479 mm depending on size and configuration. Swiss and German launch-era tests highlighted the balanced handling, the clean full-carbon frame with internal cabling, and the low weight for a full-power bike of its era, with launch-era press quoting claimed weights of 18.5 to 18.6 kg for the top XTR Di2 configuration.

By 2022 the E1 was the last of its generation. The platform dated back to late 2016, the EP8-powered Lightrider E2 had taken over as Thömus's mainstream full-power eMTB, and the E1 disappeared from the line-up during 2022, with the range subsequently led by the E2 family and the lightweight Lightrider E Ultimate. There is no owner history for this bike on the forum, so no community reliability data exists; this assessment is based on archived manufacturer pages and launch-era Swiss and German press tests.

Geometry read

What the numbers mean on the trail

Computed from this bike's geometry, spec and build kit — reach, wheelbase, chainstay, head and seat angles, travel, motor, weight and the fork/tyre/brake spec — and worked out per size, because a fixed chainstay can make an S and an XL feel very different.

Size
Setting
Descending
58

A solid all-round descender (66° head angle, 150mm) — capable in the rough and steep without being an all-out bruiser.

Playfulness
64

A fair bit of pop, but happiest on flowing trail rather than trials moves.

Size balance
60

Not enough geometry on record to judge size balance.

Technical climbing
30

A workmanlike climber — expect to put in more rider effort on the steep stuff. 250W of peak power and 70Nm of torque.

Best suited toAll-round trail riding across mixed terrain.

No single standout trait — a balanced, versatile bike.

Watch out forClimbing leans on the rider more than the motor.

Lower torque or a slacker seat angle — fine, just don't expect a winch.

How it stacks up vs other Lightweight · Trail bikes (from 90 bikes in the database)

Battery504 Wh70 Wh above average
Motor torque70 Nmclass-leading torque
⚙️ Adjustable geometry: this frame has a high/low setting — low drops the BB and slackens the head angle for more descending stability; high lifts the BB and steepens slightly for clearance and a perkier, more playful feel.
Computed from geometry + spec, not a paid review. Scores are guidance, not gospel.
Paste into any thread to embed this live, interactive panel.

Geometry · hover a row to highlight the measurement on the bike

Bike geometry diagram
Flip-chip position
geometry changes with the chip
SML
Reach411 mm438 mm470 mm
Stack583 mm592 mm601 mm
Seattube410 mm450 mm490 mm
Chainstay440 mm440 mm440 mm
Headtube Angle66°66°66°
Seattube Angle (eff)74.7°74.5°74.4°
Headtube110 mm120 mm130 mm

Trims · 5

TIC SLX
£0
TIC XT
£0
TIC XT Di2
£0
TIC XTR
£0
TIC XTR Di2
£0
MotorShimano STEPS E8000 · 70 Nm · all trims
BatteryShimano BT-E8020 · 504 Wh · all trims
Travel F/R150/150 mm · all trims
FrameFull carbon · all trims
Price£0 · all trims

Rides similarly

Other eMTBs with the closest geometry to this one.

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