Specialized Roubaix SL8
Road Endurance · All-road · closest size 52
Relaxed
Stack -9 mm, reach -4 mm versus this frame’s size M.
US list price: $2,999.99 to $12,499.99
ROAD ENDURANCE · ALL-ROAD / MANUFACTURER CHART
Trek’s endurance road frame.
Gen 5, chart read from Domane SLR 9 AXS
Road endurance
Maker wording supports the GnR category; geometry and complete-bike setup remain separate.
Classification source: Trek ↗. Read October 17, 2026.
Domane Gen 5 SL and SLR complete bikes: SL 4, SL 5, SL 6, SL 7, SLR 7 and SLR 9 builds plus the No. 76 edition. The high end is the No. 76 edition; the regular SLR 9 AXS tops at $11,499.99. Domane AL, Gen 4 and electric Domane+ builds are excluded.. Model year: Gen 5 (year not stated on page).
Displayed USD prices on 2026-10-17 on Trek's own US listing page, supplied by Ryan; builds were read from Ryan's copy of the page, and the page lists more items than an automated read could confirm. Cents are as displayed. Range covers only the named builds. Not an availability claim.
Manufacturer price source ↗. Reviewed October 17, 2026.
40 mm. Manufacturer limit for the named frame; actual tire width, rims, fenders and setup require a separate check. All-road is GnR’s ≥35 mm Road Endurance house rule, not an industry standard.
Clearance source ↗. Read October 17, 2026.
Chart read from one build; GnR has not compared it with other builds of this frame. Trek publishes its chart in centimeters; GnR converts to millimeters. Prices cover complete Gen 5 bikes, not framesets or the No. 76 limited edition. This is a newer generation than the archived Gen 3 chart.
Lengths are in millimeters. Head angles are in degrees. Frame stack and reach do not include the stem, spacers or handlebars.
| Size | Stack | Reach | Wheelbase | Head angle | Standover | Position |
|---|---|---|---|---|---|---|
| XS | 524 | 368 | 987 | 71.3° | 721 | Relaxed |
| S | 555 | 371 | 1002 | 71.1° | 753 | Relaxed |
| M | 575 | 374 | 1011 | 71.2° | 775 | Relaxed |
| ML | 596 | 377 | 1010 | 71.9° | 805 | Relaxed |
| L | 618 | 380 | 1019 | 72° | 826 | Relaxed |
| XL | 648 | 384 | 1033 | 72.1° | 863 | Relaxed |
Aggressive longer reach than the fixed benchmark at this stack · Balanced within the benchmark band · Relaxed shorter reach than the benchmark at this stack
Source: Trek manufacturer’s chart ↗. Checked October 16, 2026.
Each dot is one published frame size. The green band is GnR’s fixed geometry benchmark. Frames to its right have longer reach at the same stack (Aggressive); frames to its left have shorter reach (Relaxed). The benchmark does not change with bike type or catalog additions.
Each is the closest match to this frame’s size M (stack 575 mm, reach 374 mm) among current road frames from other brands.
Road Endurance · All-road · closest size 52
Relaxed
Stack -9 mm, reach -4 mm versus this frame’s size M.
US list price: $2,999.99 to $12,499.99
Road Endurance · All-road · closest size 54
Relaxed
Stack -5 mm, reach +7 mm versus this frame’s size M.
US list price: $3,198.99 to $7,499.95
Road Endurance · All-road · closest size 51
Relaxed
Stack -10 mm, reach +6 mm versus this frame’s size M.
US list price: $2,623.95
Prices are the maker’s US list prices for complete bikes on the date shown, and include sale prices on that date. Ranges cover only the named builds, not every bike in a family. Framesets, tax and shipping are excluded. A displayed price, including an archived sale price, does not establish stock or a purchasable offer. Retailer prices and later changes are not tracked.
Use this exact chart as your reference, select your size, then explore similar dimensions or a deliberate position change. Confirm the frame generation matches your bike before using it.
Match this bike ↗Similar frame dimensions are a starting point. Saddle height and setback, seat-tube geometry, stem length and angle, headset spacers, handlebars and control position affect the completed bike. Review those details before buying.