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Bike geometry comparison

Start with a frame you know. See how another size measures up.

32 models / 183 sizesBrowse the sourced size library ↓

The sourced example and full library work without JavaScript. Editing requires JavaScript.

AReference Model

Recorded size · stack/reach mm

Race gravel

Model, prices & evidence Plan this build

Geometry source

ICAN Cycling ↗
ICAN Graro manufacturer six-size geometry chart · Manufacturer geometry chart
Accessed 2026-09-22

BCompare Model

Recorded size · stack/reach mm

Race gravel

Model, prices & evidence Plan this build

Geometry source

Winspace ↗
Winspace G5 · Manufacturer product page
Accessed 2026-09-01

Stack and reach, close-up on one scale

01 / 02

AICAN Graro 52

Stack 544 mm / Reach 378 mm

BWinspace G5 M

Stack 561 mm / Reach 383 mm

Close-up of the head-tube positions on one millimetre scale; the axes do not start at the bottom bracket. Dots are each model’s other recorded sizes; select one to compare it.

B compared with A
Measurement	A	B	B − A
Stack mm	544	561	+17
Reach mm	378	383	+5
Head tube mm	121	130	+9
Head angle °	70	71.2	+1.2
Seat angle °	74	73.5	−0.5
Top tube mm	534.5	549	+14.5
Wheelbase mm	1023	1020	−3
Chainstay mm	425	425	0
Bottom bracket drop mm	71	76	+5
Standover mm	—	788	—
Front center mm	608	—	—
Fork offset mm	50	51	+1

Positive = B is larger. “—” = no recorded value. Stack is vertical; reach is horizontal. Both describe the frame, before stem, spacers and handlebar.

What each measurement means

Stack: Vertical distance from the bottom-bracket centre to the top centre of the head tube. More stack means a taller front end.
Reach: Horizontal distance from the bottom-bracket centre to the top centre of the head tube. More reach means a longer front end.
Head tube: Length of the head tube. With stack, it shows how much of the front height comes from the frame.
Head angle: Angle of the steering axis from horizontal. With fork offset it sets trail.
Seat angle: Angle of the seat tube from horizontal. It moves the saddle forward or back relative to the bottom bracket.
Top tube: The maker’s top-tube length, usually effective (horizontal). Compare values measured the same way.
Wheelbase: Distance between the front and rear axles.
Chainstay: Distance from the bottom-bracket centre to the rear axle.
Bottom bracket drop: How far the bottom-bracket centre sits below the line between the axles.
Standover: Height of the top tube above the ground at the point the maker specifies.
Front center: Distance from the bottom-bracket centre to the front axle.
Fork offset: Fork rake: how far the front axle sits ahead of the steering axis.

These describe the frame only. Fit also depends on stem, spacers, handlebar, saddle position and crank length.

Compare in the catalog ↗

02 / 02

Find nearby geometries

Sizes close to reference A in both stack and reach.

Tolerance on each axis / mm

Category

46 matching sizes

01
TFSA JH37 530
Race gravel · 543 / 378 mm
Stack −1Reach 0
Compare as B
02
Quick Pro GR:ONE S/456
Race gravel · 543 / 379 mm
Stack −1Reach +1
Compare as B
03
ICAN GRA04 XS
Race gravel · 545 / 380 mm
Stack +1Reach +2
Compare as B
04
Winspace G5 S
Race gravel · 544 / 375 mm
Stack 0Reach −3
Compare as B
05
Incolor Speedster Radical SSR 54
Aero, wide clearance · Aero road · 543 / 382 mm
Stack −1Reach +4
Compare as B
06
SEKA ExAero GR 52
Race gravel · 540 / 375 mm
Stack −4Reach −3
Compare as B
07
Tavelo Grow S/460
Race gravel · 540 / 375 mm
Stack −4Reach −3
Compare as B
08
Yoeleo Altera G21 52
Adventure gravel · Gravel touring · 549 / 379 mm
Stack +5Reach +1
Compare as B

Sorted by straight-line distance in stack/reach. Similar dimensions do not establish fit, handling, compatibility or stock.

Sourced size library183 sizes +

AF Bicycles AF01 6 sizes

AF Bicycles AF01 · mm
Recorded size	Stack	Reach	A · Reference
XS	535	375	A · Reference ↗
S	556	382	A · Reference ↗
M	578	389	A · Reference ↗
L	601	395	A · Reference ↗
XL	624	402	A · Reference ↗
XXL	645	409	A · Reference ↗

Adventure gravel

Model, prices & evidence Plan this build

Geometry source

AF Bicycles ↗
AF01 frameset assembly and setup guide · Manufacturer manual
Accessed 2026-08-27

Geometry notes: Current documented English manual page 3: merged cells give M bottom-bracket drop 78 mm and L head angle 71°. Earlier transcriptions remain in prior_observations; the historical August PDF revision was not reconstructed.

AF Bicycles AF01 frameset · Plan this build ↗

BIANCHI Oltre Race 8 sizes

BIANCHI Oltre Race · mm
Recorded size	Stack	Reach	A · Reference
44	481	376	A · Reference ↗
47	490	379	A · Reference ↗
50	499	387	A · Reference ↗
53	525	385	A · Reference ↗
55	541	390	A · Reference ↗
57	557	395	A · Reference ↗
59	576	397	A · Reference ↗
61	595	398	A · Reference ↗

Aero road

Model, prices & evidence Plan this build

Geometry source

Bianchi ↗
Bianchi Oltre Race YTB8D current product, geometry and gallery · Manufacturer product page
Accessed 2026-08-30

BIANCHI Oltre Race · Plan this build ↗

BXT BXT-055 6 sizes

BXT BXT-055 · mm
Recorded size	Stack	Reach	A · Reference
48	511.5	368	A · Reference ↗
51	532.5	373	A · Reference ↗
54	555.5	378	A · Reference ↗
56	575	385	A · Reference ↗
58	597.5	392	A · Reference ↗
61	617.5	398	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

Bike Insights ↗
BXT Gravel 055 2026 geometry · Geometry database
Accessed 2026-09-01

BXT BXT-055 frameset · Plan this build ↗

Carbonda CFR696 6 sizes

Carbonda CFR696 · mm
Recorded size	Stack	Reach	A · Reference
49	536.6	371	A · Reference ↗
52	557.4	375	A · Reference ↗
54	568	376	A · Reference ↗
56	589.8	384.6	A · Reference ↗
58	608.9	393.7	A · Reference ↗
61	628	403	A · Reference ↗

Adventure gravel · Gravel touring

Model, prices & evidence Plan this build

Geometry source

Bike Insights ↗
Carbonda CFR696 frame geometry · Secondary geometry transcription
Accessed 2026-08-25

Carbonda CFR696 frameset · Plan this build ↗

Elves Falath Pro Disc R7170 build 7 sizes

Elves Falath Pro Disc R7170 build · mm
Recorded size	Stack	Reach	A · Reference
44	491	359	A · Reference ↗
46	500.6	367.8	A · Reference ↗
49	523.2	369.1	A · Reference ↗
52	530.6	377.2	A · Reference ↗
54	536.6	380.8	A · Reference ↗
56	556.9	382	A · Reference ↗
59	576.1	388.8	A · Reference ↗

Aero road

Model, prices & evidence Plan this build

Geometry source

ELVES ↗
ELVES Falath Pro Disc 2022 exact frame, geometry and technical page · Manufacturer product page
Accessed 2026-08-30

Bike Insights ↗
Elves Falath Pro Disc manufacturer-sourced seven-size geometry transcription · Geometry database
Accessed 2026-08-30

Elves Falath Pro Disc R7170 build · Plan this build ↗

Elves Mori AeroX 5 sizes

Elves Mori AeroX · mm
Recorded size	Stack	Reach	A · Reference
46	520	361	A · Reference ↗
49	526	370	A · Reference ↗
52	536	380	A · Reference ↗
54	550	391	A · Reference ↗
56	564	403	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Elves Bike ↗
Elves Mori AeroX technical specifications · Manufacturer technical page
Accessed 2026-08-25

Elves Mori AeroX frameset · Plan this build ↗

Evolve CIMA GR 6 sizes

Evolve CIMA GR · mm
Recorded size	Stack	Reach	A · Reference
XS	515	365	A · Reference ↗
S	535	375	A · Reference ↗
M	556	384	A · Reference ↗
ML	580	393	A · Reference ↗
L	605	402	A · Reference ↗
XL	630	410	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Panda Podium ↗
Evolve CIMA GR frameset preorder · Authorized retailer product page
Accessed 2026-08-27

Evolve CIMA GR frameset · Plan this build ↗

Generic CS-GR01 6 sizes

Generic CS-GR01 · mm
Recorded size	Stack	Reach	A · Reference
XS	538	360	A · Reference ↗
S	554	368	A · Reference ↗
M	574	375	A · Reference ↗
L	588	382	A · Reference ↗
XL	602	390	A · Reference ↗
XXL	636	398	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

Bike Insights ↗
Xiamen Carbon Speed CS-GR01 geometry · Geometry database
Accessed 2026-09-01

Generic CS-GR01 frameset · Plan this build ↗

ICAN GRA04 5 sizes

ICAN GRA04 · mm
Recorded size	Stack	Reach	A · Reference
XS	545	380	A · Reference ↗
S	560	385	A · Reference ↗
M	580	395	A · Reference ↗
L	600	405	A · Reference ↗
XL	625	415	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

ICAN ↗
ICAN GRA04 · Manufacturer product page
Accessed 2026-08-26

ICAN GRA04 frameset · Plan this build ↗

ICAN Graro 6 sizes

ICAN Graro · mm
Recorded size	Stack	Reach	A · Reference
46	505	365	A · Reference ↗
49	519	374	A · Reference ↗
52	544	378	A · Reference ↗
54	565	387	A · Reference ↗
56	590	398	A · Reference ↗
58	610	406	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

ICAN Cycling ↗
ICAN Graro manufacturer six-size geometry chart · Manufacturer geometry chart
Accessed 2026-09-22

ICAN Graro frameset · Plan this build ↗

Incolor Speedster Radical SSR 7 sizes

Incolor Speedster Radical SSR · mm
Recorded size	Stack	Reach	A · Reference
45	511	364	A · Reference ↗
48	519	370	A · Reference ↗
51	528	375	A · Reference ↗
54	543	382	A · Reference ↗
56	563	389	A · Reference ↗
58	583	397	A · Reference ↗
60	598	404	A · Reference ↗

Aero, wide clearance · Aero road

Model, prices & evidence Plan this build

Geometry source

INCOLOR ↗
INCOLOR SPEEDSTER RADICAL SSR · Manufacturer product page
Accessed 2026-08-29

Incolor Speedster Radical SSR frameset · Plan this build ↗

Incolor Speedster SR / SR+ 6 sizes

Incolor Speedster SR / SR+ · mm
Recorded size	Stack	Reach	A · Reference
45	508	365	A · Reference ↗
48	516	371	A · Reference ↗
51	525	376	A · Reference ↗
54	540	383	A · Reference ↗
56	560	390	A · Reference ↗
58	584	398	A · Reference ↗

Aero, wide clearance · Aero road

Model, prices & evidence Plan this build

Geometry source

INCOLOR ↗
INCOLOR SPEEDSTER SR / SR+ · Manufacturer product page
Accessed 2026-08-29

Incolor Voyager 5 sizes

Incolor Voyager · mm
Recorded size	Stack	Reach	A · Reference
45	515	358	A · Reference ↗
48	526	366	A · Reference ↗
51	539	375	A · Reference ↗
54	555	385	A · Reference ↗
57	580	397	A · Reference ↗

Gravel · All-road

Model, prices & evidence Plan this build

Geometry source

INCOLOR ↗
INCOLOR VOYAGER · Manufacturer product page
Accessed 2026-08-25

Incolor Voyager frameset · Plan this build ↗

KUNG MACH 5 sizes

KUNG MACH · mm
Recorded size	Stack	Reach	A · Reference
XS	500	365	A · Reference ↗
S	525	375	A · Reference ↗
M	545	385	A · Reference ↗
L	565	390	A · Reference ↗
XL	590	395	A · Reference ↗

Aero road

Model, prices & evidence Plan this build

Geometry source

Panda Podium ↗
KUNG MACH AERO Road Bike FRAMESET · Retailer product page
Accessed 2026-10-24

KUNG MACH frameset with integrated cockpit · Plan this build ↗

Quick Pro GR:ONE 5 sizes

Quick Pro GR:ONE · mm
Recorded size	Stack	Reach	A · Reference
XS/426	524	370	A · Reference ↗
S/456	543	379	A · Reference ↗
M/486	561	388	A · Reference ↗
L/516	580	398	A · Reference ↗
XL/546	599	405	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Quick Pro USA / North American storefront ↗
Quick Pro GR:ONE · Regional retailer product page
Accessed 2026-08-25

Quick Pro GR:ONE frameset · Plan this build ↗

SAVA A7L R7100 5 sizes

SAVA A7L R7100 · mm
Recorded size	Stack	Reach	A · Reference
440	509.3	358.4	A · Reference ↗
470	516.6	370	A · Reference ↗
510	534	378	A · Reference ↗
540	554.5	387	A · Reference ↗
560	580.5	390.3	A · Reference ↗

Road

Model, prices & evidence Plan this build

Geometry source

SAVA ↗
SAVA A7L 2026 full-carbon road bike 24-speed · Manufacturer product page
Accessed 2026-08-17

SAVA A7L R7100 · Plan this build ↗

SAVA Gelaro 6 sizes

SAVA Gelaro · mm
Recorded size	Stack	Reach	A · Reference
470	533.6	360	A · Reference ↗
490	561.8	369	A · Reference ↗
510	580.6	380	A · Reference ↗
535	608.9	390	A · Reference ↗
550	627.7	400	A · Reference ↗
580	637.1	410	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

SAVA ↗
SAVA Gelaro S4-GRX400 Carbon Gravel Bike (current product page) · Manufacturer product page
Accessed 2026-08-16

SAVA Gelaro S4 GRX400 · Plan this build ↗

SAVA Gelaro S8 GRX820 6 sizes

SAVA Gelaro S8 GRX820 · mm
Recorded size	Stack	Reach	A · Reference
470	533.6	360	A · Reference ↗
490	561.8	369	A · Reference ↗
510	580.6	380	A · Reference ↗
535	608.9	390	A · Reference ↗
550	627.7	400	A · Reference ↗
580	637.1	410	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

SAVA ↗
SAVA Gelaro S8 GRX820 carbon gravel bike · Manufacturer product page
Accessed 2026-08-17

SAVA Gelaro S8 GRX820 · Plan this build ↗

SAVA Gelaro SF 6 sizes

SAVA Gelaro SF · mm
Recorded size	Stack	Reach	A · Reference
470	533.6	360	A · Reference ↗
490	561.8	369	A · Reference ↗
510	580.6	380	A · Reference ↗
535	608.9	390	A · Reference ↗
550	627.7	400	A · Reference ↗
580	637.1	410	A · Reference ↗

Flat-bar gravel

Model, prices & evidence Plan this build

Geometry source

SAVA ↗
SAVA Gelaro SF6-CUES Carbon Gravel Bike (current product page) · Manufacturer product page
Accessed 2026-08-16

SAVA Gelaro SF6 CUES U6000 1×11 · Plan this build ↗

SCOTT Addict RC 40 7 sizes

SCOTT Addict RC 40 · mm
Recorded size	Stack	Reach	A · Reference
XXS/47	504	380	A · Reference ↗
XS/49	511	388	A · Reference ↗
S/52	526.5	389	A · Reference ↗
M/54	548	390	A · Reference ↗
L/56	568.5	395	A · Reference ↗
XL/58	588	400	A · Reference ↗
XXL/61	606	410	A · Reference ↗

Road race

Model, prices & evidence Plan this build

Geometry source

BikeRadar ↗
Scott Addict RC 40 review · Independent product review
Accessed 2026-09-01

SCOTT Addict RC 40 · Plan this build ↗

SEKA ExAero GR 6 sizes

SEKA ExAero GR · mm
Recorded size	Stack	Reach	A · Reference
49	524	369	A · Reference ↗
52	540	375	A · Reference ↗
54	559	381	A · Reference ↗
56	579	389	A · Reference ↗
58	602	399	A · Reference ↗
61	620	408	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

SEKA ↗
SEKA ExAero GR · Manufacturer product page
Accessed 2026-08-28

SEKA ExAero GR frameset · Plan this build ↗

SPcycle G028 4 sizes

SPcycle G028 · mm
Recorded size	Stack	Reach	A · Reference
S	555	385	A · Reference ↗
M	574	393	A · Reference ↗
L	595	405.5	A · Reference ↗
XL	614	416	A · Reference ↗

Adventure gravel

Model, prices & evidence Plan this build

Geometry source

Bike Insights ↗
2026 SPcycle G028 geometry · Secondary geometry transcription
Accessed 2026-08-25

SPcycle G028 frameset · Plan this build ↗

Tavelo Grow 6 sizes

Tavelo Grow · mm
Recorded size	Stack	Reach	A · Reference
XS/430	530	368	A · Reference ↗
S/460	540	375	A · Reference ↗
M/490	558	385	A · Reference ↗
L/515	579	395	A · Reference ↗
XL/540	603	406	A · Reference ↗
XXL/570	627	414	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Tavelo ↗
Tavelo Grow frameset · Manufacturer product page
Accessed 2026-08-27

Tavelo Grow frameset · Plan this build ↗

TFSA JH37 4 sizes

TFSA JH37 · mm
Recorded size	Stack	Reach	A · Reference
470	515	363	A · Reference ↗
500	527	371	A · Reference ↗
530	543	378	A · Reference ↗
560	570	390	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

TFSA企业1号店 on Taobao ↗
TFSA JH37 Taobao listing · Marketplace product page
Accessed 2026-08-27

TFSA JH37 frameset · Plan this build ↗

Twitter Cyclone 3rd ET electronic 6 sizes

Twitter Cyclone 3rd ET electronic · mm
Recorded size	Stack	Reach	A · Reference
435	506	333	A · Reference ↗
460	515	349	A · Reference ↗
480	536	362	A · Reference ↗
500	547	371	A · Reference ↗
520	548	383	A · Reference ↗
540	554	398	A · Reference ↗

Aero road

Model, prices & evidence Plan this build

Geometry source

Twitter Bikes / Twitter Cycles ↗
Twitter Cyclone 3rd ET electronic road bike · Regional distributor product page
Accessed 2026-09-01

Twitter Cyclone 3rd ET electronic · Plan this build ↗

Twitter Cyclone Gen 3 ET electronic 6 sizes

Twitter Cyclone Gen 3 ET electronic · mm
Recorded size	Stack	Reach	A · Reference
435	506	333	A · Reference ↗
460	515	349	A · Reference ↗
480	536	362	A · Reference ↗
500	547	371	A · Reference ↗
520	548	383	A · Reference ↗
540	554	398	A · Reference ↗

Aero road

Model, prices & evidence Plan this build

Geometry source

Twitter Bike USA ↗
Twitter Cyclone 3rd ET · Regional distributor product page
Accessed 2026-09-01

Twitter Cyclone Gen 3 ET electronic · Plan this build ↗

Twitter Gravel V3 4 sizes

Twitter Gravel V3 · mm
Recorded size	Stack	Reach	A · Reference
45	516	365	A · Reference ↗
48	534	375	A · Reference ↗
51	550	385	A · Reference ↗
54	572	395	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

Twitter Bikes USA ↗
Twitter Gravel V3 Wireless WheelTop EDS TX · Regional distributor product page
Accessed 2026-08-25

Twitter Gravel V3 2024 4 sizes

Twitter Gravel V3 2024 · mm
Recorded size	Stack	Reach	A · Reference
45	516	365	A · Reference ↗
48	534	375	A · Reference ↗
51	550	385	A · Reference ↗
54	572	395	A · Reference ↗

Gravel

Model, prices & evidence Plan this build

Geometry source

Manuals+ ↗
TWITTER Gravel V3 carbon frameset instruction-manual mirror · Research mirror page
Accessed 2026-09-01

Twitter Gravel V3 2024 RS / Sensah 2×12 alloy · Plan this build ↗

Twitter T3 TT 6 sizes

Twitter T3 TT · mm
Recorded size	Stack	Reach	A · Reference
43.5	476	340	A · Reference ↗
46	476	353	A · Reference ↗
48	480	368	A · Reference ↗
50	490.5	396	A · Reference ↗
52	505	412	A · Reference ↗
54	520	422	A · Reference ↗

Triathlon / time trial

Model, prices & evidence Plan this build

Geometry source

Twitter Bikes ↗
Twitter Triathlon T3 TT WheelTop TX-TT7110 · Regional distributor product page
Accessed 2026-08-29

Twitter T3 TT WheelTop TX-TT7110 2×12 · Plan this build ↗

Winspace G3 5 sizes

Winspace G3 · mm
Recorded size	Stack	Reach	A · Reference
XS/440	539	363	A · Reference ↗
S/460	551	370	A · Reference ↗
M/480	568	377	A · Reference ↗
L/510	582	388	A · Reference ↗
XL/540	601	399	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Bike Insights ↗
Winspace G3 gravel geometry · Geometry database
Accessed 2026-09-01

Winspace G3 frameset · Plan this build ↗

Winspace G5 6 sizes

Winspace G5 · mm
Recorded size	Stack	Reach	A · Reference
XS	531	367	A · Reference ↗
S	544	375	A · Reference ↗
M	561	383	A · Reference ↗
L	578	391	A · Reference ↗
XL	598	399	A · Reference ↗
XXL	619	407	A · Reference ↗

Race gravel

Model, prices & evidence Plan this build

Geometry source

Winspace ↗
Winspace G5 · Manufacturer product page
Accessed 2026-09-01

Winspace G5 frameset · Plan this build ↗

Yoeleo Altera G21 7 sizes

Yoeleo Altera G21 · mm
Recorded size	Stack	Reach	A · Reference
45	512	373	A · Reference ↗
49	531	373	A · Reference ↗
52	549	379	A · Reference ↗
54	566	383	A · Reference ↗
56	586	387	A · Reference ↗
58	611	390	A · Reference ↗
60	640	396	A · Reference ↗

Adventure gravel · Gravel touring

Model, prices & evidence Plan this build

Geometry source

Yoeleo ↗
Yoeleo Altera G21 Panda Podium Purple frameset · Manufacturer product page
Accessed 2026-09-01

Yoeleo Altera G21 frameset package · Plan this build ↗

Source clarification needed (3)

These original tables remain on their model pages. They are excluded from this calculator while their geometry evidence is unresolved.

What the numbers tell you

Stack and reach compare the position of the head tube relative to the bottom bracket. Size names are not standardized between brands. Check the exact generation, size, source and complete cockpit setup before choosing a frame.

Manual dimensions stay in your browser and shared link. The tool does not save a profile.