Stack and reach
How high and how far forward the top of the head tube is, from the bottom bracket. They are the two numbers that decide whether a frame can be set up like yours.
BB, or bottom bracket
The axle your cranks turn on, in the middle of the frame. Every number on this site is measured from it, because it is the one point that sits in the same place on every bike.
Headset cover
The little cap on top of the head tube, under your spacers. Most makers do not publish it, so I assume 15 mm and add 6 mm to the band, which on its own is enough to hold an answer at "probably" rather than "fits".
Stem clamp, and its centre
The collar on the steerer that your stem bolts to. I need the middle of it. Where a maker gives only the height, I assume halfway up and say so on the answer.
Steerer
The tube coming up out of the fork. The cover, the spacers and the stem all sit on it, and it is the thing a mechanic cuts to length.
Bar reach
How far forward the hoods sit from the middle of the bar. Two bars on the same stem can put your hands 20 mm apart, which is why I ask.
Setback
How far your saddle sits behind the bottom bracket.
Drop
How much lower your bar is than your saddle.
Rails, and the rail centre
The two rods under your saddle, and the middle of the straight part of them. That midpoint is the point I use, because it is the one you can find with a tape.
The band
How far out I could be, in millimetres, and why. It is a straight sum of everything I had to assume rather than a clever average, so it errs wide on purpose.
wb, stand, trail
Wheelbase, standover and trail: how long the bike is, how high the top tube is where you straddle it, and how steady the steering feels. I show them against your bike, and I leave them out when the maker does not publish them.
est.
Estimated: a number I worked out rather than read off the maker's table. Anything marked this way can move if the maker publishes the real one.
Close Escape closes it. The measuring guide has the pictures. Open the measuring guide
Pardus SPKG4 EVO
Aero road · 7 sizes
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This is the bike I ride
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- Bike
- Pardus SPKG4 EVO · Aero road · 7 sizes · integrated cockpit
- Geometry
- pardusbicycle.com, fetched 29 Aug 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 6 September 2026 · 210 bikes, 43 makes, 1,262 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| XXS | 470 | 366 | 71 | 75.5 | 67 | 405 | 962 | 721 |
| XS | 487 | 376 | 71.5 | 75 | 82 | 405 | 970 | 739 |
| S | 500 | 384 | 72 | 74 | 95 | 405 | 976 | 751 |
| M | 516 | 391 | 72.5 | 74 | 109 | 405 | 981 | 767 |
| L | 530 | 401 | 73 | 73.5 | 124 | 405 | 988 | 782 |
| XL | 550 | 410 | 73.5 | 73.5 | 142 | 405 | 996 | 802 |
| XXL | 571 | 420 | 73.5 | 73.5 | 164 | 405 | 1013 | 833 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
In the maker's words
Kept whole, as I read it off pardusbicycle.com.MAKER STATES (spec table on the source page, both builds SHIMANO ULTEGRA Di2 and SHIMANO 105 Di2): HANDLEBAR "PardusCarbon, Integrated Handlebar"; STEM "------" (no separate stem, the bar is a one-piece integrated cockpit); SEATPOST "Carbon, 0 offset".
Cockpit and seatpost, in the maker's words · 467 words
MAKER STATES (spec table on the source page, both builds SHIMANO ULTEGRA Di2 and SHIMANO 105 Di2): HANDLEBAR "PardusCarbon, Integrated Handlebar"; STEM "------" (no separate stem, the bar is a one-piece integrated cockpit); SEATPOST "Carbon, 0 offset". No bar widths, stem lengths, stem angle, bar reach/drop, clamp height, spacer heights, max spacer stack or seatpost length are published on the maker's page. The geometry table does publish a cockpit datum as two extra rows, "Reach to stem" 360/370/378/385/395/405/415 and "Stack to stem" 488/505/518/534/548/568/589 (XXS..XXL), which sit +18 mm stack and -6 mm reach from the frame stack/reach on XXS to L and +18 mm stack and -5 mm reach on XL and XXL - consistent with a point roughly 19 mm further up the steerer axis, presumably the top of the headset cover / underside of the integrated stem; the maker does not define the point, so that reading is assumed. NOT ON THE MAKER'S SITE (third-party claims, unverified, recorded only as leads): cyclistshub.com article "Pardus introduces Spark Evo Gen 4" (updated 2026-04-14) says "The integrated cockpit offers 380mm width, a 50/80mm rise/drop, and stem lengths ranging from 100mm to 160mm in 10mm increments" and "frame weighs approximately 950g in size Medium"; retailer raceit.cc lists the handlebar as "MVMT M-SILVER Carbon Aero Integrated" and the seatpost as "Pardus Aero Carbon" with no dimensions. Stock stem length and bar width per size are therefore null. PARENT SITE (parduscycle.com, Shandong Taishan Pardus Composite Material Co., the brand owner; SPKG4 EVO listed as the Spark 4th-generation flagship, checked 2026-08-29): DURA ACE build handlebar = "SPKG4 EVO carbon, fully hidden internal routing, 82 mm reach, 125.5 mm drop, 380 mm centre-to-centre at the lever mounts, 421.5 mm centre-to-centre at the drop ends" (so about 41.5 mm of total flare); ULTEGRA build handlebar = "MVMT M-SILVER A-TYPE carbon, fully hidden internal routing, 60 mm reach, 130 mm drop" (width not stated). Neither maker site states a bar width or stem length per frame size, a stem angle, a headset cover height or a spacer stack. Seatpost on both CN builds: "PARDUS SPARK EVO, HS-HPT carbon, 0 mm offset, 350 mm, Di2 internal battery compatible"; no other offset or length is offered. Fork length 370 mm on every size (CN row L). Frame per the CN spec: UHMS-EPS+ carbon, fully hidden routing for electronic groupsets only, T47 85.5 mm bottom bracket, 12x142 rear and 12x100 front thru axles, maximum tyre 700x32c front and rear; CN stock tyre Michelin Power Cup 700x28c TLR, EU stock tyre Continental Grand Prix. Dealer leads only (uaecycle.com, not the maker, unverified): "integrated one-piece carbon stem (matching frame size)", "380/420mm dual-width drops", rider heights XXS 152-160, XS 158-167, S 163-173, M 168-178, L 176-183, XL 180-190, XXL 188-198 cm, L-size frame 1100 g and fork 420 g, UDH hanger.
OFFICIAL SOURCE STATUS: pardusbicycle.com is Pardus Europe S.r.l. Source: html_table
How I read the maker's table
(Battaglia Terme, Italy; contact email on the global brand domain info@pardus-bikes.com), the brand's European arm, and it is the maker's live page for this bike. The global brand site https://www.pardus-bikes.com/ returned HTTP 402 "Store unavailable" (paused Shopify store) on 2026-08-29, so no alternative maker page was reachable; no separate Chinese-language maker page was found. The geometry is an HTML table on the source page (section "Geometry"), one column per size XXS, XS, S, M, L, XL, XXL, plus a labelled line diagram https://pardusbicycle.com/wp-content/uploads/2026/05/SPKG4_Telaio_Geometrie_trasparente.png (viewed, not stored). STACK DATUM: the diagram draws STACK vertically from the bottom bracket centre to the top of the head tube and REACH horizontally from the BB centre to the same point, i.e. conventional frame stack/reach; stack and reach here are the table's "Frame stack" and "Frame reach" rows (the "to stem" rows are recorded in cockpit_options). ROW MAPPING: top_tube_effective = "Top tube length (Horizontal)" (B1); head_tube_angle = A1 (diagram labels it M1); seat_tube_length = "Seat tube length" (D1, seat tube measured along the tube per the diagram code 4, datum not stated); chainstay = E1; wheelbase = "Wheelbass" (sic, WB); front_centre = "Front center" (G1); bb_drop = K (diagram labels it N); head_tube_length = Q; fork_offset = F (diagram labels it NE); standover = "Stand over height"; trail is published by the maker (57.7 on XXS, 57.4 on all other sizes). Angles are given in whole and half degrees; lengths in mm. CONSISTENCY CHECKS: wheelbase equals sqrt(FC^2 - drop^2) + sqrt(CS^2 - drop^2) to within 1 mm on every size; the published trail reproduces from head angle and offset with a wheel radius of about 345 mm (700c with a 28 mm tyre). SIZE NAMING: XXS..XXL only, no cm equivalents; the page lists no rider-height chart. MODEL YEAR: the page states none; the maker's images were uploaded 2026/05 and the page was last modified 2026-07-16 (article:modified_time), and the cyclistshub article says the Gen 4 was unveiled in China shortly before 2026-04-14, so this reads as the 2026 launch geometry, but model_year is left null because the maker does not print a year. Nothing on the page was assumed beyond the two points flagged above. Frame details from the spec table: 12x142 mm rear and 12x100 mm front thru axles, flat-mount hydraulic disc, 160/140 rotors, MVMT 50 mm carbon wheels, Continental Grand Prix tyres. PARENT SITE CROSS-CHECK (second pass, 2026-08-29): the Chinese maker site https://www.parduscycle.com/Hightxq.aspx?t=27444&id=43723&pz=20889&color=20917&cc=20896 (SPKG4 EVO - ULTEGRA; the DURA ACE variant is pz=20890&color=20891) carries the same seven-size table to one decimal: standover 721.1/739.3/751/766.6/781.6/801.8/832.7; top tube 486.2/505.3/526.5/538.8/557.3/573.2/589.5; wheelbase 961.9/969.6/975.6/980.8/988.1/996.3/1012.5; front centre 568.9/576.8/581.9/587/593.4/601.4/617.6; seat tube 438.5/455/467.8/482.3/496/516.3/557; head tube 66.9/81.8/94.7/109.1/123.9/142.1/163.9; fork length 370 on every size; head angle, chainstay, BB drop, fork offset and trail identical. Every integer on the European page is that decimal rounded, so the European values were kept as the record. TWO DIFFERENCES TO KNOW ABOUT: (1) the CN table's only stack and reach rows (488/360 for XXS up to 589/415 for XXL, with STR 1.36/1.36/1.37/1.38/1.39/1.4/1.42 computed from them) are the European page's "Stack to stem" / "Reach to stem" rows, not the frame stack/reach used here; anything sourced from the CN site will therefore show XXS as 488/360 rather than 470/366. (2) the CN table prints the XXS seat tube angle as 73.5 deg where the European page prints 75.5 deg; reach + stack/tan(STA) reproduces the published top tube within 2 mm on every size (487.5 vs 486.2 for XXS at 75.5 deg, but 505.2 at 73.5 deg) and 75.5 continues the XS 75 / S 74 progression, so 75.5 is kept and the CN 73.5 is read as a typo. MODEL YEAR EVIDENCE FROM THE PARENT SITE: the CN listing calls the bike the Spark 4th-generation flagship, its product images were uploaded 2026-03, 2026-04 and 2026-06, and the CN homepage news carries a January 2026 fourth-generation team announcement; neither maker site prints a model year, so model_year stays null. Panda Podium's public Store API (search=pardus) returned 0 products on 2026-08-29, so there is no Panda cross-reference for this frame.
