Quiver

2025 Merida Big Trail vs 2026 Forbidden Heathen Framekit

The Forbidden Heathen Framekit size closest to your MID is the S2. Compare the S2 instead

What changes on the Forbidden Heathen Framekit

Compared with the Merida Big Trail in MID, the Forbidden Heathen Framekit in S4 places the top of the head tube 3 mm higher and 40 mm further forward, relative to the bottom bracket. Its wheelbase is 57 mm longer, which can contribute to stability at speed.

Frame stack
+3 mm
Higher front end
Frame reach
+40 mm
Longer frame reach
Wheelbase
+57 mm
Longer: steadier at speed
Head angle
±0.0°
About the same head angle
Chainstays
n/a
One of the bikes has no number for this

The two frames

2025 Merida Big Trail (MID)The Merida Big Trail frame drawn to scale.J 1214

Only the Merida Big Trail is drawn. The Forbidden Heathen Framekit numbers we have for size S4 are missing the chainstay length.

Geometry side by side

MeasurementMerida Big Trail MIDForbidden Heathen Framekit S4Difference
Reach455495+40 mm
Stack645648+3 mm
Head tube angle6464±0.0°
Seat tube angle76.576−0.5°
Effective top tube603657+54 mm
Chainstay length435not listed
Wheelbase12141270.6+57 mm
BB drop70not listed
Standover724764+40 mm
Seat tube length420470+50 mm
Fork length551541−10 mm
Head tube length110120+10 mm
Stack-to-reach1.42not listed
BB heightnot listed311

Differences are the Forbidden Heathen Framekit minus the Merida Big Trail. Full charts: 2025 Merida Big Trail, 2026 Forbidden Heathen Framekit.

Where each sits in its class

Merida Big TrailForbidden Heathen Framekit

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartMerida Big Trail300Forbidden Heathen Framekit
FrameMerida BIG.TRAIL TFS IInot listed
ForkSR Suntour XCR34 2CRnot listed
ShifterShimano CUES U4000not listed
DerailleurShimano CUES U4000not listed
CassetteShimano LG300not listed
ChainKMC XGlidenot listed
CranksetShimano CUES U4000not listed
Bottom bracketFSA BB-7420ST 127.5mmnot listed
WheelsetMerida Comp CC IInot listed
TireKenda Regolithnot listed
RimMerida COMP CC IInot listed
BrakeShimano MT200not listed
RotorShimano SM-RT10not listed
HandlebarMerida Comp TRnot listed
StemMerida Comp TRnot listed
GripsMerida COMP ECnot listed
HeadsetAcros ICR EXTERNAL necknot listed
Dropper postdroppernot listed
SeatpostMerida COMP TR IInot listed

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